Wanted intructable - "Convert an Aquarium Air Pump into a Vacuum Pump"

Hey all - Wanted intructable: "Convert an Aquarium Air Pump into a Vacuum Pump" I know this is pretty simple - probably... as well to add to that a mod... "Convert a Aquarium Air Pump into an Adjustable Vacuum Pump" I'm trying to build something else and would like to see how this is done - i have one shot at one Aquarium air pump and don't want to mess it up. Plus i'd like to know how to regulate the vacuum  - make it with adjustable vacuum pressure if possible - if i even really need to or at least regulate the vacuum pressure so it is not too much if it is after built. I'm sure i could do a google and find all the parts - thinik tank it out and build it... but if you know already how to do it - makes things a tad easier for me. The instrucable even easier to avoid mistakes. thanx - chase -

Posted by -chase- 8 years ago


small vacuum pump

Where can i purchase a replacement vacuum pump for a rival vacuum sealer vs230

Posted by derricklaw 1 year ago


Air pump

Does anybody know how to make a air pump for an aquarium?? I need it for a Humidifier.

Posted by kris142 10 years ago


variable output dc water pump for a wind generator

I'm interested in figuring out how to direct the energy produced by a wind turbine into a water pump. My goal is to pump water from a river to the top of a hill into a pond. then slowly release it through a variable water turbine so that the pond serves as a battery. i've seen pumps that work with the power take off(PTO) of a tractor that could be retrofitted if i had the right dc motor. i need to figure out what motor might work and what type of contolling i would need. also would it be better to use several smaller units that engage one at a time as the power input increases to keep the pumps closer to thier ideal operating range? The (PTO)water pump i saw operates between 17-23 hp or 20kw or less, which is perfect because the turbine is 20kw. the other thing is what if the pump operation starts at 17hp(?) then most of the power would need to be directed somewhere when producing less. maybe a series of different sized pumps and a controller to determine which pump(s) to engage to get the most water pumped.

Posted by steve34 10 years ago


mixer grinder pump

Our water tank is on the roof, so the tap there doesn't have much pressure to water mom's plants on our roof with a pipe. So i need to make a pump. We have an old mixer grinder set with all its jars. But i'm not sure how to make a pump into a jar. limitations: 1) Can't cut holes in the metal parts of the jars, no equiments. only the top is plastic 2) 3D printer/ cnc or any thing of that sort is not available

Posted by Tj77 3 years ago


searching for a pump that can handle pudding

I dug through a few forums, trying to decide which this was best suited for. I settled on tech since its a physical computing project. I'm looking for a resource for a water pump that can handle something like pudding. the initial thought was use an air pump and a bag or maybe have the bag be squeezed closed but i need it to cycle through.  Like a water fountain of pudding! The pudding spurts out, then there is also an intake which is recycling the goop. Does anyone have a resource on pumps which could handle something so thick?  (and since its a small scale project, cheaply and small!)

Posted by gjclimer 5 years ago


I need help finding a mini water pump with DC motor

I've been trying aliexpress, Amazon, ebay, etc., but I'm not sure what to look for really. I just need a water pump with an attached low voltage DC motor that can shoot a jet of water. Everything I see looks like low flow stuff for fish tanks etc... perhaps I'm not using the right search criteria or am not able to recognize the right motor and pump when I see it. 

Posted by tsaltzman 3 years ago


Amps for 12 volt tire inflation pump

I'm trying to attach an AC adapter to a 12-volt tire inflation pump (the kind that plugs into your car's cigarette lighter), then convert it into a vacuum pump for degassing molds. I tried connecting the only 12 volt wall wart I have and it just barely got the motor moving. I'm guessing that the amperage of the adapter is too low. What sort of amps would this unit need to run correctly? Is it even possible to run this thing from a wall outlet?

Posted by Boy Genius 5 years ago


water pump idea

I hypothesise that when is heat applied to a suitable sealed vessel, filled with water, and having a pipe into the base of the container below the water level, that when the water gets hot enough, it will exit the pipe under pressure. if anyone has any input or had experiance with this kind of a thing or knows of a device which works in the same or similar manner, i would like to hear from you.  i though it could be a way of moving water with no moving parts or access to electricity, motors etc. thank Kim.C.S.B

Posted by QSDR 5 years ago


Air Compressor/Vacuum Pump

I have a theory: You have your supply of compressed air. You connect that by hose to one branch of a y-connector. The other branch is connected to a hose that goes into some sort of fluid that you want to move from one vessel to another. The trunk of the y is your exhaust (in theory). So now I give, say, 15 psi out of my air supply and that shoud drag my fluid out of its vessel through the y connector to the destination of my choosing. Would that work?

Posted by flagrantfouler 10 years ago


Coil Pump

Morning, all. We've just completed a quick proof of concept for a hand-powered coil pump. The pump lifted water through 3.1 meters of vertical height. Take a look at https://www.instructables.com/id/Coil-Pump/ comments and ideas for development appreciated Thanks!

Posted by chuangt2u 6 years ago


EMF Pump

Can I use a sphere magnet when building an EMF PUMP? Glued onto the pulley. Thanks

Posted by papster 6 years ago


Air Pump

Does anybody know how to make an air pump for a aquarium out of stuff laying around your house?

Posted by kris142 10 years ago


New knex pump action idea

Ok, to start off, If you are wondering why I dont have a gun to demonstrate this concept, its because I just thought of this a few hours ago.So anyways, I have an idea for a pump action concept. This idea would work like thisthe rubberbands would be hooked onto the pump instead of the gun via Y connectors on the pump.when the pump pulls the ram back, the rubberbands do not expand or contractafter the ram goes behind the trigger, the pump is pushed forward, expanding the bands and giving the gun its powerthe pump hooks into a locking mechanismthe trigger is pulled, and either recoil or another mechanism hooked to the trigger unlocks the locking mechanism for the pumpThe advantage of this over other pump action guns would be that the pump would be easy to pull back, no matter how many rubberbands are on the pump.

Posted by DJ Radio 9 years ago


water pump

I have a very strong 18v motor from an expensive cordless drill(clutch went out). I also am in need of a pump to drive some misters, 20+ PSI. Is there a pump I can make or buy to be driven by my motor?

Posted by geckoguykc 7 years ago


how can i build a pump?

I need to pump water out of a hole where a cracked water line is leaking. can i build one with a fan motor? i have no pics.

Posted by jennakp 10 years ago


how to make an aquarium air pump

Hi allso i do not know much about air pumps, but i wanted to construct onei know i need a diaphgram for the pump, but what else do i need?i found this replacement part (http://cgi.ebay.com/Perfecto-Aquarium-Air-Pump-200-Replacement-Diaphragm_W0QQitemZ200197939820QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item2e9cba226c&_trksid=p3286.m20.l1116) which was the diaphragm pump itselfit has some magnet part which it attaches to for the electric part,but say i wanted to make it to a kind of attachment where i wanted it to split to two wires, how would this work?thanks!

Posted by AXmichigan 9 years ago


water diven dc generator

Construct a dc generator using a water pump driven by a garden hose.

Posted by alaskagene 10 years ago


Pumping Water in the Arctic!

As a small background to the project I am working on: I am currently doing my Masters of Architecture in Copenhagen, and we are designing devices to bring on our expedition to the North Pole, and I am harnessing salt water to pump through salt water batteries. My question is then: What kind of pump do I need to pump water up 2 meters? I don't need much water coming up at once, just needs to be constant. I am also looking for the most energy efficient way of doing this, any know of something? Any help is much appreciated! :) Thanks, AD

Posted by arctic_devices 3 years ago


new knex pump action

Please try to make it off of my crude drawing. If you post an ible please give me credit or tell me if it has been done. If so post link. The way it works is when you pump it the pusher hits the top most ammo. That pushes it onto the ammo lifter. When you pump forward  that pulls the string which raises the ammo lifter. That then becomes part of the bottom of the barrel. Then you cock the gun and fire. Repeat. P.S. The scriblls on the paper are not hyroglfics they are words.

Posted by tytiger33 7 years ago


Pump action crossbow with a mag

Alright, I've had this idea for like forever and I finally got a working prototype yesterday. It has a pump with two prongs on the side which catch the rubber band bow as it is fired and then pulls it back. The trigger is a triangle shape so the rubber band can slide over the top, but still be caught on the back. The system has a few kinks, but mostly it just isn't that smooth. I hope to work them out and eventually be posting.

Posted by DRADIS 9 years ago


Pump for little pieces of paper

Hi, I'm going to make a display cabinet for an art project. Please see image for more info. The idea is to have a container (gray box) with ash on the back side of this cabinet, then there should be a pump (red dot) emptying this container and blowing the ash to the front true a tube (see red line) into a double glass window.  How can I create something like this? the problem is the transfering of the ash (little pieces of paper) from the back to the front.

Posted by vkranendonk 8 years ago


Solar Panel for Water Feature Pump

I'm looking for some suggestions to run a 12v/3A bilge pump in my outdoor water feature using a solar panel.  (This particular bilge pump has a built-in float switch to shut off the pump should the water level drop too low).  Solar is my preference because it'll only run during the day. 1) What size solar panel would I need for this?   Most are described by voltage and watts of power (24V, 10W).  I currently have a 24V/10W panel I'd like to configure for this but it's specs only show it producing less than 1 amp. 2) Should I look for plans to build an DC/DC converter(?) to limit the voltage to 12v? 3) Is there a way for me to boost the amperage? Thanks for any help, links, or suggestions! Dave Nagy Florida

Posted by DaveNagy 3 years ago


Food safe pump

Hi everyone! I'm working on a halloween costume where I want to have a container of liquid on my back, a hose from said container running down my left arm and a way todispense the liquid through the hose. Right now the dispensing is the problem. Would a windshield washer pump be reasonably safe to use for something that is going to be consumed? I'd buy a new unused one of course. If that's not a good idea, what would be? I've experimented with a can of compressed air to push the drink out but was not fully satisfied with the result.

Posted by Jur 4 years ago


Jet Boat powered by High pressure Water Pump???

Hello Instructablers, I would love some input from some of the great minds in this community for slightly mad project I have been thinking about. In the spirit of "What Could Possibly Go Wrong" I am planning to try powering a small boat with an engine drive water pump. We recently got some new pumps in at work that will do up to 80m head (113 psi), or flows to about 750 litres per minute (I think that's about 164 gallons). Powered by 13HP Honda engine. It's a very impressive pump, but will it be able to power a boat? Here's my plan so far: Either obtain or build a small boat. Perhaps with a flat bottom. I will mount the pump as low and central as I can. Full of water the pump will weigh around 50-60kg. The suction hose would be connected to a tank flange that penetrates the hull at the deepest point. The discharge will penetrate the transom. Various nozzle sizes will be tried to find out the best compromise between flow and velocity. What do you think? Considering most of the jetboats I have seen have massive V8 engines in them, could my idea possibly work? Will it need to be an impossibly small boat? Will I need more than one pump? How many? What's more important; flow, pressure, velocity? Should I stick to oars? I have other pumps to choose from with greater flows if that makes a difference. Go here to see them:  http://www.pumpmaster.com.au/engine-drive-pumps.htm Here's silly video of the boys at Pumpmaster in Queensland trying out the new machine... http://youtu.be/zjYvENfr1cw

Posted by cammers 5 years ago


Vacuum pump voltage?

Today I was dumpster diving and i found an old vacuum so i decided to take the pump out but i made the mistake of not checking what voltage the vacuum runs on, because it also had a spinning component at the mouth of the vacuum. I think the pump works fine because i noticed that tube connecting the mouth of the vacuum and the pump was broke. Is there anyway to find out what voltage it runs on? would standard 120 be ok?The markings on it say 81 b-9 ECP 6500-240 HPU+ 60hz HD10 120 vac 07:07 does that mean it will work off a standard 120 outlet?update: What I am going to do with this motor has been decided. I will be attaching it to the back wheel of my bike with a car battery, i will install some type of switch on the handlebar or add something like a dimmer switch, this would allow me to have the motor on if i want, and i can adjust the speed. Please help fine tune this idea.

Posted by astrozombies138 10 years ago


I Got a Vacuum Pump

I recently obtained a Vacuum pump from the school (they got it from like a barn or something where it was sitting for like 10 years, so it needed a lot of cleaning, lot of dirt). I'm not sure how strong it is, but it is powered by a 1/2 HP motor (the same motor that I got earlier, I'm just now using the Vacuum pump) and uses pullies to make the torque more around 2HP. Couple of Questions: -It works (I'm not sure how well, if you put your hand over the output and give the pulley a 1/4 rotation turn it generates a noticeable amount of sunction (and sounds like an opening bottle of wine when you take your hand off). -What usually goes bad with old pumps, can I prevent it? -I should probably change the oil, is there a cheap local way of getting some (like some sort of auto oil?) -Do you think there's enough suction to create a vacuum tube. (doesn't have to be precision made, it's for Tesla Coils, think large Vacuum Tubes)

Posted by guyfrom7up 9 years ago


pumping water without electricity?

So I want to build an aquaponics system, because they're awesome, but I need a way to move water about 6' verticaly. I dont have elctricity where I want to put it, and there's not going to be. The water needs to be moved from the bottom of the fish tank, to the top of a resivoir tank. I want to buy the least amount of stuff possible for thisproject, so I could use some help:D

Posted by jakem456 8 years ago


Vacuum Pump Limit Switch System

Hey Everyone... I'm Alive! I've just been really busy with my senior design project :DSo today I acquired ToolUsingAnimal's vacuum pump on loan. I'm going to be doing some vacuum bagging.... To prevent his pump from blowing out, I need to make a limit switch so the pump shuts down when it reaches full vacuum and then turns back on if some of the vacuum bleeds of somewhere.So the method I cooked up today was to use a syringe with a weight. The weight will pull the syringe open and close a micro switch that turns the compressor on. If there's vacuum, the plunger will be fully retracted and the switch will be open (off position). This method will cost me all of $5 or so (10 cents for the syringe and $4 for the switch).I was just doing some math on how much weight I'll need for different syringe sizes - and it's totally plausible (we're talking less than a pound to 3 pounds depending on syringe diameter).Question - any other suggestions or blatantly obvious/easy/cheap solutions? I know this sounds Rube Golbergian, but it's not nearly as complicated as it sounds (or looks) :D Emphasis on cheap, I just put in an order for roughly $2000 of materials and supplies!

Posted by trebuchet03 10 years ago


Outdoor water fountain...how to silence homemade pump

Hi Guys, I love this website. I've been living in Egypt and can't really do all the hobbies that I love. We recently moved and I have a little patio area. So I wanted to build a waterfall. It's 10 feet high and I didn't realize it would be such a futile task trying to find a water pump that will pump that high. So I decided to make one. I attached some images showing the centrifugal pump made from two plastic containers, a water bottle, plastic coat hanger, and construction adhesive that is driven by a drill. It works really well. It gets up to the twelve feet I currently have the hose running up to. But in order to do this, the drill has to be almost full speed which is obnoxiously loud.  I'm looking for some ideas on either how to silence the drill motor, or go a different route. I have to rebuild the shaft as I snapped the plastic rod (hanger) I was using, so I'm open to some rebuild ideas. Thanks so much for the input! I'll post a tutorial once I get a fully functional, stable, and practical prototype.

Posted by senica 5 years ago


Has anyone made a solar heat powered Fluidyne stirling engine air pump?

So, I will start with what I have in mind.  (Might be total rubbish because I don't fully understand).  You have a solar collector box, not more than 1 meter square.  painted black 1 to 2 cm deep,   and probably with glazing over top. The box itself is metal fully closed up and the back is insulated.  From the box through the insulation there are some metal tubes that go to another box at back for the cooling chamber. Tubes are constricted so the air sprays through to the cooling box and it goes into steel wool as it expands. On the reverse stroke, it does not go so much through the steel wool because the nozel constriction is  on that side not the hot side.   Power is taken away from a liquid piston somewhere attached to both chambers  or a diaphragm at the back. (It can be water cooled). I want the strokes to be long and slow. Can it work?   Temp difference will only be around 40 degrees C and the pumped air ( 2 valves  in chamber off of liquid piston) only needs to go to 2 psi. )    I have been in contact with a guy in Germany who made Sterlings that worked with sun heat.    But he didn't use Fluidyne (also called liquid piston stirling) and he did not pump air.          My specs are extremely low, I only need 60 litres per hour of air at 1 or 2 PSI.  It would be very cool to make it from such basic materials.                 Thanks Brian

Posted by gaiatechnician 5 years ago


How can I transport water up into a tank that is 10m vertically above?

Hi Instructablers, As what mentioned in the topic, I am thinking of transporting water from my leaking pipe back into my tank which is roughly 10m above? Lets not talk about replacing the leaking pipe. Help help help! 

Posted by kelvintoys 3 years ago


Traditional pump car lever mechanism

Does anyone know how the lever mechanism of a traditional pump car work? I'm thinking of building a miniature model but I can't find any design schematics for it. Thank you.

Posted by pinoymale 10 years ago


how to inflate a bike tire with out a pump

Hello everybody, I have recently built a no weld rebumbant bike. And during the course have discovered that I do not own an bike pump. since I live in a extremely rural area borrowing is out of the question if some one could please help me I would greatly appreciate it. sincerely, fidgety

Posted by fidgety2 9 years ago


Biofuel powered water pump, no moving parts and modular!

I just added a video about how to make one. http://blip.tv/file/4142099 It is probably not what you are expecting. I made the prototype and it works. Brian

Posted by gaiatechnician 7 years ago


a real pump action shot gun out of knex.

By a real pump action i meen it loads the round not pulls back the ram. the idea was to have a crossbow type thing. have it shoot green connectors. the pump has a claw that has hands made out of hindges. when you have somthing in the claws path that goes inside of the claw and will move the claw hands out to let go of the round. and the thing out side of the claw hands the make it grab the round. so first you lode the rounds green connectors. then you pull the pump back so that it grabs the green connector. the green connector has a rubberband on it. when you pump back the green connector is pulld back and loaded. the claw hands then go over the thing that makes them let go of the round.the next green connector is loaded. the green connector is put in place by the mag. when the greenconnector is fired it slides over the nexted one loaded and leaves the rubberband on the next green connector. then you pump agein and the prosses starts all over again for as long as you want.

Posted by dsman195276 10 years ago


Rain Barrels

I have inserted a Sump Pump through the top of my rain barrel. I have a 6X10 inch screen tightly fitted in the barrel which I remove to insert the pump. Now my wife can drag the hose around the yard to water her plants and garden and to water the grass.

Posted by diff95 6 years ago


Help! I need a small, lightweight but pretty powerful water pump. It needs to shoot 2 cups of water from 5 feet to 15 feet.

I would like it to be able to pump water from a pond. It will be on a platform above the pond. Also, can you tell me specifics on how to power it? Thank you so much!

Posted by alex96100 5 years ago


Timed Arduino, Solar Panel, Battery & 12V Pump HELP

Hi all, I'm a struggling to do a project in less than 1 week for a charity and wondering if the www can help. I'm a complete electronics/Arduino beginner so please break any suggestions down, thanks! The challenge: I need a little water pump to run for 3 seconds with a 10 minute pause completely off the grid 24/7 from a battery. I need the battery to be charged using a solar panel and hold enough storage to run 2 days without sunlight. An Arduino is also needed to change the duration and interval of the pump. What I know: The pump requires ~12v @ ~270mA (5W) and 64.8mAH (for 2 days of operation) (pump runs for 18s per hour = 0.05h per hour 0.05h x 270mA = 1.35mAH 1.35 x 48hrs = 64.8mAH) I also need to be able to take the battery on a flight so please recommend a suitable battery for the system (I was thinking maybe the Li-ion 18650? http://www.ebay.co.uk/itm/311727421481?_trksid=p2060353.m2749.l2649&ssPageName;=STRK:MEBIDX:IT). Pump: http://www.ebay.co.uk/itm/222223864810?_trksid=p2060353.m2749.l2649&ssPageName;=STRK:MEBIDX:IT What is the simplest way to wire & code everything up? (Please also recommend any required components) Any help is much appreciated!

Posted by nikian.aghababaie 1 year ago


electric motor or electric pump made with CNC 3D printer or mill for a CNC machine

I was wondering if it would be worthwhile to try to make an electric pump or electric motor for a CNC machine (printer or mill) using a CNC machine. I know motors are mainly metal, but as long as the heat does not build up, the casing should be able to be plastic or whatever material, right? Some copper wire and a magnet should be the only resources else than the building material and the motor could be of a unique design since it would be made by a CNC for a CNC.

Posted by nstenzel 6 years ago


Watering Pump with LCD, Arduino. Need some help with code

Hi, Building watering unit with LCD, based on Arduino mega. I couldn't get correct value on LCD. I want to show current sensor readings. Could you please help #include #include LiquidCrystal_I2C lcd(0x27,20,4); int PUMP = 13; int sensor = 8; int val; const int DigitalInPin = 8; int sensorValue = digitalRead(8); void setup() {   pinMode(13,OUTPUT);   pinMode(8,INPUT); lcd.init();                      // initialize the lcd lcd.init(); delay(100); } void loop() {    val = digitalRead(8);     if(val ==LOW)   {   digitalWrite(13,LOW);   }   else   {   digitalWrite(13,HIGH);   }   delay(400); lcd.backlight(); lcd.setCursor(0,0); lcd.print("Soil Moisture:"); sensorValue = digitalRead(8); lcd.setCursor(0, 1); lcd.print(sensorValue); }

Posted by PASHGEN 9 months ago


How clouds act as an air pump to suck in air. Not how you think they do!

I have been thinking a long time about the biotic pump theory but I still don't understand it.  The math is too hard for me.   BUT it got me to thinking.   It is a point of major dispute in the meteorological world.   Does condensation cause low pressure?  2 russian nuclear physicists say yes,  almost everyone else says no!   So,  I thought and thought and thought.  Now I think I have a simple enough explanation And yes, they may not necessarily cause low pressure under the cloud (probably do)  but they definitely suck in air from elsewhere.  Imagine a fleet of huge doughnut shaped dirigible airships. They are sitting at 10,000 ft just floating there.   Now the commander tells everyone that they must now fly at 5000 ft.   So they turn on their propellers (in the hole in the doughnut) and drop down to 5000 ft by propelling air up  through the hole.   Now staying at 5000 ft is achieved by running the propellers at just fast enough.  So at 5000 ft they are pumping air from under the doughnuts to above them.   Now imagine a cumulus cloud.  Even though it is not fixed in size or shape and it does not have a propeller,  it is doing the exact same thing.  Air is being pumped up the middle and the clouds are sitting lower in the sky than they "should",  because they are sending that column of air up into the sky.   Here is my video to explain it visually.  https://www.youtube.com/watch?v=sPO8dWm_GIg

Posted by gaiatechnician 2 years ago


High pressure pump

Does anybody know how to build or get a pump that costs maybe like $20 that will pump to at least 400 psi?

Posted by waterrocketexpert 4 years ago


How to replace your cars fuel pump in three easy days

My truck, over the last few months, had developed a lovely little penchant for not wanting to restart once warmed up. This wasn't to bad as long as I didn't plan on being anywhere less than 3 hours, and kept my wife from sending me to the store. But with summer here and wanting to be able to run off and go fishing I decided to fix it. After doing some diagnostics I think the most likely culprit was a fuel pump that was sticking as it heated up, and I thought this info might help anyone needing to replace theirs. Day one, we'll spend this day dropping the fuel tank. Those repair manuals are really helpful, just slide a jack under the tank, unbolt the straps, drop the tank, disconnect the fuel lines and you're done. The reality is just a little different. Firstly the entire time you're working under your car a gently rain of road grime consisting of grease, dirt and decayed road kill will be falling into your eyes, ears and mouth. Second, there's a lot more lines going to the fuel tank than the manuals say, after sweating and swearing over trying to remove the spring clips the best option is just to cut any rubber lines since after 10 years they're all rotten anyways. Now struggle blindly to maneuver the fuel line disconnect tool into position by feel, while pushing the tool into the connection shove the fuel line in the direction of the tool while simultaneously stabilizing the fuel tank with your head. Once all the lines are cut or disconnected lower the tank using a jack, a couple of coffee cans and a bunch of short pieces of 2x4 and drag out from under the vehicle. Unscrew the fuel pump assembly and remove from tank, then detach fuel pump from fuel pump assembly. you are now done for day one since your wife has the other car. Day two, taking a section of each of the lines you cut, along with your old fuel pump, visit an autoparts store, hand the lines to the clerk and ask him for 3 feet of each size, now marvel in wonder as he LOSES the pieces you gave him between you and the back of the store. Smile nicely as he tries to explain what happened and then say "Umm No I don't need anything else" and leave. Go to second auto parts store where they will try to sell you, first, the wrong pump, and then, when they finally admit it won't work, they try to sell you the entire fuel pump assembly, say "Let me think about it". Go to dealer, laugh hysterically and vociferously ejaculate "Oh Heck, No!" when they say the pump is $439.00 and will be in Monday. Lastly drive to the final remaining autoparts store and say "Please tell me you have a fuel pump like this one" and rejoice when the guy say "Sure, you need the Bosch with the adapter socket, I can have it here by three". Weep with joy, go home and wait until three. Day three, the true horror is that we now reverse the steps taken on day one and there is no way to test if everything works until the last bolt is tightened, however day three began with a stuffed up head and severe vertigo caused by allergies, apply medication and go back to bed for several hours until you can stand without puking. When well enough, reverse the steps of day one. Fortuitously the majority of the road grime will have fallen on you already and this time it will be as refreshing as a summer's shower. Add two gallons to clean gasoline and start the vehicle, when the vehicle fails to start remember that you disconnected the battery. Remedy that and marvel when your vehicle starts, but the joy will be short lived when you remember that, oh yeah, it would start before. So now, hold out hope that it won't have the hot start problem anymore, but you'll never know if it will happen again, unless it happens again.

Posted by Tool Using Animal 9 years ago


Advice on A centrifugal pump.

Hello, I recently was given a pet from a friend and after doing some research on what the little guy needs I came to the understanding that the current enclosure he is in is inadequate for his needs. Therefore, I wanted to save up some cash to get him the right size tank set up that I know he deserves. In the meantime though, I have plenty of things laying around the house that I feel could render him a more comfortable habitat till that investment goes through. After more research on the matter, I came to find that for most household aquariums, the bulk of the work falls on your filtration system. That being said, I wanted to go for a Wet / Dry Sump Filter setup as it would be  the most easiest system to setup at home with the various resources laying about. Unfortunately while gravity will be doing the work of siphoning the water from the tank down to the Wet / Dry Filter Media, it will not be moving it back up to the tank. For that I concluded there was no escaping the need of a pump in some shape or form to move that cleaner water back into the tank. From what I read the pump will pretty much determine how big I can make his tank.  So this brings me to my current dilemma. Presented with various motors around the house, I went for the biggest I could find (* excluding the water pumps in our cars mind you). That so happen to be a 1.25 HP Wet & Dry Shop vac that was collecting dust in the garage. I confirmed the motor is working and already came with the impeller attached to it. I was hoping to see if you fine folks could share some wisdom on how I can: 1.) Make it Waterproof. 2.) Adhere the right type of casing around the Impeller and Motor so as to benefit from the  Bernoulli's principle and get the most water moving through my system.  3.) I intend to have this setup not 15~20 feet from where I sleep, this motor is LOUD. I was reading online about creating a sound damping box for it and was wondering what suggestions you guys might have for that? I keep fearing there won't be enough ventilation and it will over heat. ....anything else you would like to throw in. TL;DR : 

Posted by Rensouken 7 years ago


Solution to turning on/off gas: new pump design.

I've been working a couple weeks now on solving the problem I posted here on how to improve my pump design by alternating the feed of ethanol vapour. I got good feedback but ultimately all the solutions involved mechanisms which were going to be somewhat tricky to build and source, which is against the brief of the project I'm working on; being an open source solar tracker concentrator makeable from scrap. In the end I solved the problem by largely redesigning the whole pump. Since it's driven by boiling ethanol, rather than add an extra mechanism for turning the feed of vapour off and on, I reduced the amount of ethanol being boiled, so that it boils itself out after an appropriate period. The vapour is then able to collapse fully, which sucks in more liquid ethanol and refills the system. 1. At the bottom right is the boiler, which holds about 2-3 ml ethanol. 2. This boils and the vapour enters the 'chamber' (the half blue, half white (liquid and gas)), forcing out the liquid, which pours into the wheel, ending up in the main reservoir. 3. This continues until the eths in the boiler has boiled away to the extent that it can no longer overcome the rate of re-condensation in the chamber, which starts to suck, so to speak. 4. This draws liquid from the reservoir, which passes through the boiler, shutting off the boil, the pressure drops quickly and the chamber and boiler refill with liquid. 5. Two valves (the only moving parts, besides the wheel) keep all this going in the right direction. 6. Repeat. The wheel provides the motion for the solar tracker. It's not in by any means powerful or efficient, but the whole thing can be made from a bit of metal tube, some thin pipe, a glass jar and two valves from bike inner tubes (plus a paint tin, bike wheel bearing and some drinks cans for the wheel). I haven't had a chance to try it in the field yet, but powered by a candle it seems to work fairly well. Blog entry here, will post photos and videos when available.

Posted by SolarFlower_org 8 years ago


A fountain that does NOT run on electricity

I know it is possible to build a fountain that runs on gravity and water pressure, but I'm not sure how to go about making one. I understand that you can't get something from nothing, and I'm not looking for a fountain that would run endlessly. If someone could show me the basics of how such a font might work, I would greatly appreciate it. 

Posted by Trigonography 7 years ago


Lit bubble columns/bubble wall

I've been looking at these awesome bubble columns that are so wretchedly expensive and dying to get one for my office. Note, I am sure they are worth every penny, but I have few pennies. For the link-phobic, a bubble column is a clear tube several feet tall with an aerator making bubbles and multi-coloured lights from beneath the column. Some columns are interactive and others have plastic fishies or balls that sail around inside.  There is also a space-saving "bubble wall" that only runs 1L of water.  Anyone even have a clue as to where to start? No pics, sorry, I didn't want to pull them off the website. 

Posted by 0jack 6 years ago


Manual Water Pump

I am trying to build a manual water pump in my house. We are digging a well of about 320 feet (about 100m) and are hoping to pump water into an overhead tank that is about 13ft (4m) above the ground. Can anyone help me figure out how to build such a pump. Electricity is and expensive commodity in my area and that is why were looking to use a manual pump. Any input will be appreciated.

Posted by oppan_d 6 years ago


Heat Pump

Has anyone attempted building a homemade heat pump?  Maybe one used as a hot water heater only? What are the challenges that prevent a DIYer from building one from scratch?

Posted by krichmond0306 6 years ago