Dissolving material

Any material that dissolves in water after a particular period of time (eg:3000 litres) .. or any other way to achieve it..?

Posted by ursurya000007 2 years ago

Old Water Softener Uses

Does anyone have a creative use for an old water softener?

Posted by spring97 4 years ago

Water rockets

Does anyone in instructables make water rockets? We seem to not have a great deal of them. If you like water rockets, please join https://www.instructables.com/group/waterrocket/

Posted by starwing123 9 years ago


Hi all! I am trying to find out about a simple stupid drip water irrigation system. Bucket, tube. Is there any instructable out??? Thx, Harry

Posted by harryknoll 10 years ago

Drinking Water Condenser

Does anyone have any plans or ideas for a DIY drinking water condenser? Something that can make water from the air would be fantastic, especially as climate change starts to have more and more of an impact on the availability of clean water. Electric powered should be fine, directly solar powered might be more difficult. Any thoughts?

Posted by foul_owl 5 years ago

Drinking Water

Hello! Here's the big one for all you engineers, inventors, and smart-dudes. How can we purify water cheaply, efficiently, and safely for the rest of the world who needs it? Go team GO!

Posted by Chthonic 9 years ago

Help with multistage balloon-tipped water missile

I'm designing the perfect water weapon of mass soakage-the super water missile, and I'm shifting my attention to multistage water rocket thrust systems. My finished product will hopefully be able to reach high altitudes, acheive moderate horizontal distance, and either drop many water balloons over a specified target area, or be tipped with a very large water balloon for a "wet impact" (very wet). I don't know how multistage water rockets operate though, and there are no instructables on how to build them. I searched Google, and all I got was pictures. No DIY's, how-to's, or tutorials. Could anyone tell me (or better yet-show me) how to make a multistage water rocket-or at least how they operate?

Posted by MattGyver92 9 years ago

Homemade water purifier for a bug out bag

Does anybody know how you can make a homemade water purifier small enough to fit in a bug out bag?  I am looking for something that I can be sure that will make water safe for me to drink without using chemicals.

Posted by XiBowhunter 7 years ago

The science behind this self watering system for plants

Hi, I was watching a video for a self watering system for plants (link below), and was wondering what the science behind it is called. I also had a problem where no water came out of the bottle because the hole I made at the bottom was too small. As soon as I unscrewed the cap a little, the water came gushing out. https://www.youtube.com/watch?v=Ffe7JfYyBFE Thanks :)

Posted by horsebones 3 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

LeakFrog disassembly?

Has anyone successfully disassembled a LeakFrog water leak detector? 

Posted by arpruss 3 years ago

Water valve on/off control

Need some help! I need to know what to buy. I need to control water flow with an electric water valve to open when the water temp reaches 65 degrees and shut off at 55 degrees. From the valve, thermometer, etc., what do I need to buy and how can I wire it? I know it’s the same concept as a HAVAC thermostat in your home, but I don’t know how to wire it to a relay for the valve.

Posted by opc167 8 years ago

water stuff

Well the contest is pretty cool i wonder what else people are going to enter i cant wait to enter mine it is pretty cool but i would rather have the first prize then the second

Posted by DIY and STUFF 7 years ago

ultimate water rocket

I need help to build a water rocket that when it reaches the highest point a device for making the fall slower like the back pack of the skydivers something like that so please i will upload a video and give you credits so please help!!! o and remember it has to be cheap for a 15 year old budget

Posted by raytone 11 years ago

Too Short for an Instructable- free water

A friend showed me this trick at Safeway. If you are thirsty, but either 1) Don't have money on you or 2) Don't want to buy a whole bottle just for a few sips, most food stores are required to give free water to anyone who asks. There will be no signs advertising this fact. Simply walk up to the counter (we did this at a small Starbucks stand by the bakery) and politely ask for a drink of water. My friend received a clear plastic cup filled with water and ice, no charge. Then I walked up and bought a Dr. Pepper, not free of charge.

Posted by Spl1nt3rC3ll 10 years ago

Contest Idea + make the world more sustainable

Many states seen facing water shortagesYeah, it's pretty bad - but I keep seeing lawns watered (anger)...Just throwing out a suggestion -- a project contest that tackles a focused global issue... Water conservation, for example. There's already a few great ones on the site too.

Posted by trebuchet03 10 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

Water spouts at Bellagios Las Vegas also in Chicago on the pier

We were fascinated by the spouts and I see they are also on youtube. Does anyone know how we could make them to go in our garden? www.youtube.com/watch?v=AO3kfjWh2qM

Posted by Kiwi girl 5 years ago

DIY water jet engine?

Hello. Me and couple of my local DIY buddies are also big fans of fishing. Because we are all students and can't drop 1K+ on normal outboard motor for our tiny aluminum boat, we are thinking on making our own. What we have here is a 200cc lawnmower engine. Because we don't wanna get into business of making our own gears we are looking for ways to implement water jet system. The problem is we just can't figure out what is gonna do a good job of being our turbine. Any suggestions? Does anyone know if the intake half of automotive turbocharger is gonna for pumping water?

Posted by Kizzmansky 7 years ago

Need Information

Hello everyone i found this gif and was amazed by the water skipper thats what im calling it this guy was on so im looking for any information on the water skipper how it works can i build one what would something like this cost stuff like that  so comment comment comment thanks and hope everybody is having a good night  doriean 

Posted by doriean 4 years ago

Man Bellyflops from 35 Feet into 12 Inches of Water

A man jumps 35 feet onto a kiddie pool with a foot of water in front of dozens of kids and delivers a thrilling show instead of a tragic occasion to haunt them the rest of their lives. Future plans include a jump from 40 feet. Stay tuned. via Neatorama

Posted by fungus amungus 9 years ago

Beautiful Inefficiency

It's all about the journey for the rainwater in this German building.

Posted by fungus amungus 10 years ago


I was just updating the group today, and I noticed that this group has been here for at least six months, and this group has no ratings! I would rate it myself, but I can't rate my own group..... If you were to search for other water war related groups, how many would you find? I checked recently, and unless somebody decided to make one, I found one result-The Water Warrior Group. If this is the only water war related group on all of instructables, then don't you think we could use some stars? If you happen to read this, add a rating! It'll make you feel better about your life, and it'll certainly make me feel better about mine!

Posted by MattGyver92 8 years ago

clean and reuse washwater

I want to clean and reuse my washing machine water to wash clothes.  The system must be #1 cheap to build(off the shelf parts), #2 cheap to use(wasting power to save water is stupid). I am thinking, an easily accessed fine mesh lint trap. A second stage to remove chemicals (sand?charcoal?) and a third to kill any buggies (UV light?). I will also need to address which products are best to use for this system. And of course a valve too return to the "normal" system for some occaisions. Thanks for any input . nursenary     

Posted by nursenary 6 years ago

Plumbing Help

Help! We just moved into a new house and the water pressure seemed pretty high, especially at the bathroom sink (it sprays everywhere when turned on full).  I tested the pressure at an exterior hose bib and it measured at 81 psi.  It also measured at 79 psi at the cold water supply valve for the washing machine.  I sent the pictures listed here to my father-in-law, who seems to believe that I can adjust the pressure with the current plumbing system.  I looked everywhere for a pressure regulator in the line, but couldn't find one.  The only thing I can think of is that he believes the gray valve above the meter is a glob valve and can be used to throttle down the pressure.   Any help would be appreciated!

Posted by dklaver15 2 years ago

Waterproof Ultra Sonic

Does anyone know of any type of ultrasonic that is waterproof and can go underwater? cause im trying to make a fog machine using the ultrasonics pieces and water since my dad bought something that worked like what i described. anyone know of any that can be underwater or some design that will work underwater using a regular ultrasonic you see on robots?

Posted by KT Gadget 9 years ago

Gossamer Falls Copper Works

Any body know how to make a Gossamer Falls Copper Works Will sombody of a How to...?

Posted by kjvman 9 years ago


Does any one know how i may make a waterproof webcam i want to study my fish from inside the tank

Posted by TT__TT 10 years ago

Carbonated water tap

Anyone know how to make a carbonated water tap?

Posted by mmanning5 4 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

Atmospheric water humidifiers

Anyone know how to build one?

Posted by lynnda 6 years ago

water car

Ok i have an idea im only 13... not shure if its been thought of before but everyone knows about the car that runs on water but what about a car that ran on dirty water or inpure water and then could change that to pure water while your driving :D if this was thought of before anyone else its my idea xD

Posted by moe1243 9 years ago


Does any one know of a way to breath under water using objects from home I don't mean like a snorkal but a full fledged under water breathing apparatus

Posted by aceLED 10 years ago

Pumping Water From Basement To Roof

I have a 50 gallon water tank in the basement and a solar tank on the roof. The roof tank is 35 ft above the basement tank and the top of the basement tank is connected at the bottom of the roof tank with 1/2 inch Pex with valves. Is there a simple way of pumping the basement water to the empty roof tank. Unfortunately I can't use city water pressure to force the basement water up to the roof. I am trying to transfer the basement water to the roof leaving the basement tank empty.

Posted by atw58 4 years ago

auto fill water drinker

Pl help me make some thing like this. https://www.youtube.com/watch?v=0SpjOSwMMK4 thanks

Posted by iqss 3 years ago

Spain Turning Into Desert as Water Wars Begin

Parts of Spain are feeling the pinch of too many people going after too little water. Some of the land is drying out after water-thirsty resorts and corn farms in the arid land guzzle it all up and leave nothing behind. About the only thriving part is the black market which is charging ever higher prices.Where I live in Oakland we're getting phone calls from the water utility to cut back on water use and are facing higher prices ourselves. People could even face penalties for excessive watering of gardens. Makes me feel OK for letting most of our plants shrivel up and die after all. Water Shortage in Spain

Posted by fungus amungus 10 years ago

Evaporating Water Drops

Ok, so I was using the Water Drop Paint effect iBle, but when I was done, I realized my plan had a big downfall - it's almost dark.Is there a good way to evaporate the water drops without using wind, which would blow the drops around (i.e., blow dryer)?Thanks!

Posted by Bran 10 years ago

Electronic water level gauge for well

I have a 32m deep, 95cm diameter well, that is covered with two heavy concrete covers. The water depth is about 20m down from the surface. I cannot easily access the well to sound the depth or visually check the water level. I would like to build an electronic water level gauge that will tell me the amount of water in the well. I can then regulate watering accordingly. It was suggested to me that I use a washing machine pressure transducer but I have no idea of the circuit required. A refined solution would send data to my PC !!!! I have 240v AC supply to the well pump. Any ideas? Steve

Posted by SteveG31530 9 years ago

How to build a floating water polo goal post

Hi, Does anyone know how to build a floating water polo goal post I need to buil one to use it in the sea ? Thank you in advance, Dimitris

Posted by dimitemma 6 years ago

Water Wars

In this forum topic, the main idea is when and where you'll want to host a water war. Here, we talk about space issues, location, time of day, etc, as well as the design/construction of things that can be installed, like mines, bases, trenches, sniper nests, and turrets.

Posted by MattGyver92 9 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

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

200 kl/day waste water from dye industry treatement by electrolysis No of plates electrodes & dc power requirement


Posted by pcshah 5 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

Animating Water Bottle Recycling Rates

Here's a neat animation of water bottle recycling rates....bottled water (in all its flavors) has become one of the most consumed, yet least recycled beverages. For example, it is estimated that in 2005 alone approximately 30 billion plastic water bottles were purchased, with only about 12% recycled (in part due to out-dated deposit laws). The remaining 25 billion bottles were either landfilled, littered or incinerated. Obviously that's a lot of bottles, but statistics involving "billions of bottles per year" can be difficult to put into perspective.

Posted by canida 10 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

How to make water from excessively humid air (using little energy) . Any ideas?

I was thinking of making some sort of machine that uses cooling coils to condense water from the air, seeing as to how humid it has been lately, but I want to do it using less energy than a dehumidifier that's on all the time and have it be more rugged so I can put it outside and maybe use it to water the garden. Any ideas?

Posted by hydrnium.h2 10 years ago

Shower Water Softener help?

I've been trying to do some research before purchasing a shower water softener, as our water is unbearably hard. It drys out the skin and promotes clogged pores. The problem is... i'm not exactly sure what to look for. There's so much info out there on such a seemingly simple topic, and i'm having a little bit of trouble digesting it all. I'd appreciate it if anyone could give me the quick and dirty version of what i need to look for in one of these things. Thank you!

Posted by Apollo_11 6 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

Low Cost Low Tech Ozone Bubbler

Clean water is becoming scarce and chlorine is a dangerous substance to be hauling around in the Third World. The dirty secret in water processing is that ozone works just as well as chlorine. How about coming up with a small handheld device which could sanitize small amounts of water using the local atmoshere by turning o2 into o3.   I'm thinking aquarium pump to begin with.

Posted by Mud Stuffin 6 years ago