I have invented a Shower made from a large converted high pressure
garden Chemical pump pressure sprayer so if it is hot all us tent folk can get under that.
It works rather well. (No it never has had chemicals in it so its safe.
All you have to do is fill the large plastic bottle supply tank with water and puimp the handle untill you can not pump it anymore flick a switch and away you go. adjust the sprayer forward for a fine spray or losen for a drenching spray.