DIY Outdoor Shower
...collector box containing a manifold of copper pipes that feed into a used water heater. Hot water contained in the copper pipes in the collector box rises up into the water heater that is kept above the level of the collector. Hot water rises just like hot air and the cold water from the tank sinks back into the collector thus forming a circulation loop–this phenomenon is known as thermosiphoning. Some plumbing skills, are necessary, but it’s rel...