...origionally I was considering a reverse osmos unite....then -what the heck-I don't drink any tap water anyway.....clorine disapates faster in warm weather and bacteria and viruses do grow faster also.....my water system doesn't depend on anything but a source of water with at least 20 pounds of pressure.....or I could put a tank on the back of the tractor and attach a hose without a pump to the main inlet and have a adequate water supply....I can also use air pressure to operate my system but at only 20 gallons at a time....enough for 4 showers and a few dishes....NAH! I use paper plates-washing dishes is dangerous-I've heard.....I could also use water out of a lake or something to bathe with but I think I'd get a skin disease/rash with clorine....geofkaye ;>