This project goes into the build of a DIY solar powered pressurized roof top water heater and shower that is portable for outdoor survival and camping trips. This project is easy to make and requires only minimal tools and plumbing parts.
The dimension of the pipe used for this build is six feet tall and four inch wide. This has a capacity of 15 liters. The materials you need to build this project are six feet long four inch ABS pipe, air compressor, two four inch PVC end caps, abs cement, rubber schrader valve, shutdown valve and retainer nut, radiator valve drain plug , forstner bit,two inch threaded end cap, high heat flat black paint, steel wool scrubber, methyl hydrate.
The shutoff valve is installed as low as possible in the pipe to avoid the necessity of having to tilt the system. Mark the position for the valve keeping the retainer nut in place , we insert a forstner bit into the nut creating a center mark for the drill .Once the hole is drilled ,we thread the shut off valve into place and attach the retaining nut.
For installing air compressor for pressurizing the tank ,we use an long schrader valve that is used for aluminum rim tyres. This valve uses threaded nuts to secure it in place .
Next step is to install the water intake opening. For this we use a two inch PVC threaded adapter socket . We take the diameter of the fitting and then drill out the opening and glue the fitting in place using ABS solvent cement.
A radiator valve drain plug is installed on the threaded end cap of the water intake PVC fitting .This valve helps to release extra pressure from the tank without opening the main drain shut off.
In order to improve thermal absorption of solar energy, the surface of the ABS pipe is painted with flat black paint. The surface is polished with steel wool soaked in methyl hydrate and applied one coat of spray primer followed by two coats of high heat restoleum black paint.
To mount the shower to roof of the car or truck , we use a canoe foam block . We extend the slots in the foam block to make them fit inside the cross rails . An arc is cut on the foam block equal to the outside diameter of the pipe and positioned it such that it left half an inch of foam between the mounting slot and the bottom of the arc. To attach the shower to the support pads, here we use one inch nylon tie down straps. With both these pads in place, the water heater is securely attached to the roof.
An inexpensive 25 foot long coiled three eighths inch hose from the local garden center is used as the shower hose. This would be perfect as it is easily stored and can be taken apart after use. The air compressor is connected to the pipe with the help of a multifunction spray nozzle .
Thee bursting point of six inch ABS pipe is well over 100 psi .So a 30 psi would provide safe and ample pressurized shower without any long term expansion fatigue to the pipe or glue connections .
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- How to build an Emergency Waste Oil or Used Vegetable Oil Candle from Old Nail Polish BottleThis project goes into the build of a simple and inexpensive waste oil/ used vegetable oil candle from an old nail polish bottle. You can burn motor oil ,vegetable oil, olive oil or you can also use lamp oil in these types of candles. The first thing your need for this oil candle is a reservoir to hold the oil in. Here we use a finger nail polish bottle. Next , a length of 100% cotton yarn is needed that is slightly longer than the length of the bottle. Another requirement is a one inch square piece of aluminum foil. The first thing you need to do to start this process is to take the bottle , clean it completely and fill it with your source of fuel like veg oil, waste motor oil, corn oil, olive oil . When you are pouring the oil, you don't want to go all the way up to the top of the bottle. Leave small amount of space at the top of the bottle. Take the aluminum foil and fold it length wise in half .Puncture a small hole in the middle of the foil . Through this hole, the cotton wick is pushed through. Lower the wick into the bottle and fold the aluminum foil around the neck of the bottle. This acts as a lid . Make sure that everything is folded down nice and tight around the bottle. Check the candle and see if this wick is wet. And if it is not , turn it upside down for a minute . The oil will then come into this wick and saturate it. Be careful that your aluminum foil doesn't fall off. If your cotton wick is a little bit longer, pull it up a little bit . This exposes the wet part of the wick. Take your scissors and cut the wick down just a little. Light the candle . When you first go to light them it takes a minute because you have to get everything warmed up. Let it burn a little bit. Make sure to not use a thick layer of aluminum foil for the lid. The aluminum foil will heat up and cause problems. https://www.youtube.com/watch?v=LbHFrvL99eA