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  • How to completely refill a 1lb "disposable" propane Bottle

    Hey, I don't think people understand how any size propane tank is refilled. If you have ever taken your propane tank to a refill station, you will notice that they hook the hose from the big tank and pump to your tank, they open the valve on your tank and start the pump, at this point you will notice they take a screw driver and open a vent on the side of your tanks valve, at this point gas is escaping and the liquid propane is being pumped into the tank, they know the tank is full when the liquid propane starts to blast out the small vent and they close it with the screw driver, then they close your tanks valve and turn the pump off. Now the tank is not all the way full like you would think, there is still head space in the tank. You fill the small 1 lbs tanks the same way, when the li...see more »Hey, I don't think people understand how any size propane tank is refilled. If you have ever taken your propane tank to a refill station, you will notice that they hook the hose from the big tank and pump to your tank, they open the valve on your tank and start the pump, at this point you will notice they take a screw driver and open a vent on the side of your tanks valve, at this point gas is escaping and the liquid propane is being pumped into the tank, they know the tank is full when the liquid propane starts to blast out the small vent and they close it with the screw driver, then they close your tanks valve and turn the pump off. Now the tank is not all the way full like you would think, there is still head space in the tank. You fill the small 1 lbs tanks the same way, when the liquid propane starts to blow out the vent it is full, there will still be just the right amount of head space in the bottle, that is the way they are filled at the factory. If the vent is open , it will not over fill and if the vent is closed the bottle will pressure up and not let anymore propane enter the bottle. So you don't need to get on your computers, get calculators out, do a months worth of rocket science math to figure out how much propane can go into the bottle.

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  • frisbrob commented on deba168's instructable DIY OFF GRID SOLAR SYSTEM1 month ago
    DIY OFF GRID SOLAR SYSTEM

    Hey, one thing i see all the time with solar projects is all anybody uses is 12v deep cycle batteries. These batteries were mostly meant for boats, high cranking amps and could be discharged more without killing the life of the battery. The best battery to use is deep cycle 6v batteries wired in series to give you one big 12v battery. If you want lots of power stored for longer use, use 6v batts. Another thing that you need to think of if you are going off grid is your solar array needs to be big enough to not only run the things you want but also put out enough power to recharge the batteries at the same time or each time you start to use the batteries they will just be drained more and more until they are dead. System needs to be bigger than for just running the house. If you are tota...see more »Hey, one thing i see all the time with solar projects is all anybody uses is 12v deep cycle batteries. These batteries were mostly meant for boats, high cranking amps and could be discharged more without killing the life of the battery. The best battery to use is deep cycle 6v batteries wired in series to give you one big 12v battery. If you want lots of power stored for longer use, use 6v batts. Another thing that you need to think of if you are going off grid is your solar array needs to be big enough to not only run the things you want but also put out enough power to recharge the batteries at the same time or each time you start to use the batteries they will just be drained more and more until they are dead. System needs to be bigger than for just running the house. If you are totally off grid then your system needs to keep the batteries charged the whole time the house is draining power. Same thing either way you look at it.

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  • frisbrob commented on madcow120's instructable Solar Power Bucket2 months ago
    Solar Power Bucket

    Yes on safety! After reading what i posted before madcow120 posted his, i realize that i was not clear on the subject of not putting the battery in with the electronics. Not only will the acids in the fumes corrode and destroy the inverter and other electronics but in a confined space the fumes will build up especially while the batt is charging and just one spark, can you say bomb! I see things on-line all the time where people build their own solar panels or wind turbine and charge batteries that are in the house stored in a bench that is just inside of an entry way that you can sit on to put your shoes on, or they are in the garage stored in some container with no ventilation, you should never breath the battery fumes and never store them in your home because of fumes, fire or explos...see more »Yes on safety! After reading what i posted before madcow120 posted his, i realize that i was not clear on the subject of not putting the battery in with the electronics. Not only will the acids in the fumes corrode and destroy the inverter and other electronics but in a confined space the fumes will build up especially while the batt is charging and just one spark, can you say bomb! I see things on-line all the time where people build their own solar panels or wind turbine and charge batteries that are in the house stored in a bench that is just inside of an entry way that you can sit on to put your shoes on, or they are in the garage stored in some container with no ventilation, you should never breath the battery fumes and never store them in your home because of fumes, fire or explosion hazards, this bucket is probably worse. Good idea but needs to be redesigned.

    Sorry, meant DeMayo not madcow120

    This is a good idea but there are some problems with the idea. First, car and riding mower batteries are not meant to be discharged, each time they are they loose life. Deep cycle batts are not meant to be discharged any more than 1/4 to 1/2 way either. The other thing with this is that you should never put the regulator and inverter in with the battery, even a sealed battery puts off fumes that will destroy the inverter and other components, even in an RV you should never put the inverter with the batteries. Another thing is that the more power the inverter puts out the more heat it makes thus the reason for the cooling fan and if it is a small inverter it still has cooling fins that need cool air passing by them to cool the unit down. For the cost of building this and the amount of po...see more »This is a good idea but there are some problems with the idea. First, car and riding mower batteries are not meant to be discharged, each time they are they loose life. Deep cycle batts are not meant to be discharged any more than 1/4 to 1/2 way either. The other thing with this is that you should never put the regulator and inverter in with the battery, even a sealed battery puts off fumes that will destroy the inverter and other components, even in an RV you should never put the inverter with the batteries. Another thing is that the more power the inverter puts out the more heat it makes thus the reason for the cooling fan and if it is a small inverter it still has cooling fins that need cool air passing by them to cool the unit down. For the cost of building this and the amount of power it will provide it's just not worth the money. If this is for power outages about all it will do is run a light bulb for couple of days or charge your electrical devises. Here where i live the power has only went out twice in the last 13 years and for only about an hour at a time. Most riding mower batts will go bad just from not being used, mine has several times even with a trickle charger on it all winter long. I would rebuild it with a wood cabinet with a divider, batt on one side and electronics on the other with ventilation on both sides and completely sealed so the fumes can't get to the electronics. Myself, i still wouldn't put the money into it unless it was really needed and was going to be used all the time.

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  • frisbrob commented on velacreations's instructable Chispito Wind Generator3 months ago
    Chispito Wind Generator

    One other thing, i see someone saying there would be no drag if it was on the front of the caravan, if you put a wind powered fan in front of a wall it will not run very well, no power. The air needs to be able to flow through freely so it would need to be mounted on the side or top, nothing in behind it. If you mount it to the front of your truck the wind will go through the fan and then the AC condenser, oil cooler, radiator and then run into the engine, not as much wind resistance but there still is and you would need to run a lot of heavy wire clear back to the trailer batteries and a regulator in the middle some where so the batteries won't over charge.

    I forgot to mention one thing about the motor and fan size. Any kind of a generator when under load will have resistance, if there is to much resistance and not big enough fan blades it will come to a stop or run very slow. I don't think you could use a plastic fan or even a cheap metal one either, think about the wind pressure and turbulence on top of the trailer and you would need to mount it very well or the wind would just rip it off.

    There are pros and cons to putting one on the top of your trailer or using your truck alt. There will be some drag which will make the engine work harder using more fuel but it would probably be about the same as what your alt would pull from the engine anyway., most alt's pull about 15-20 horse from your engine at peak output.Think about this though, if you have 1 or 2 batteries in your truck and 1 to 4 batteries in your trailer plus all the other electronics and lights running, that is a huge load on that alt, plan on replacing the alt every so often, the alt's them selves don't go bad but the regulator inside burns up or the brushes wear away. The wiring from the truck needs to be the right gauge to handle that much power for charging the trailer batteries and will the fridge be run...see more »There are pros and cons to putting one on the top of your trailer or using your truck alt. There will be some drag which will make the engine work harder using more fuel but it would probably be about the same as what your alt would pull from the engine anyway., most alt's pull about 15-20 horse from your engine at peak output.Think about this though, if you have 1 or 2 batteries in your truck and 1 to 4 batteries in your trailer plus all the other electronics and lights running, that is a huge load on that alt, plan on replacing the alt every so often, the alt's them selves don't go bad but the regulator inside burns up or the brushes wear away. The wiring from the truck needs to be the right gauge to handle that much power for charging the trailer batteries and will the fridge be running while your driving, most fridges pull 10 amps when on electric setting. Putting one on top of the trailer would be good for taking the load off the alt but they do have rpm limiters and if you were going down the road at 65-80 mph the blades would fly right off and i don't need to say much about what would happen if you drove under a low overpass. What i do, is i just charge my batteries all the way before i leave, get to my camp site, run my generator to charge the batteries back up if i was running the fridge while driving, if not then my batteries would still be charged and i would just set up my two solar panels and let them keep the batteries charged. No load on the truck or anything on top of the trailer. I have two 300 w panels that cost me $150.00 ea and a charge controller that i think was about the same. I have 4 6v deep cycle batteries hooked together as one big 12v battery, all the power in the world, no problems.

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  • frisbrob commented on zaphodd42's instructable Make PVC Look Like Wood5 months ago
    Make PVC Look Like Wood

    Hey, just wondering if this could be used for out door applications or would the sun just destroy it? Instead of wood for a grape arbor this would be much better, no rotting wood.

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