New cottage industry.
 

Found my newest cottage industry. Would charge can of food or ammo for a shower. Put water tanks on roof and solar panels to heat them. Recycle the water. Of course armor it and have escort vehicle.

https://youtu.be/36yBA1uOnRE

Especially when placed in conjunction with a "higher-scale" brothel... "No shower, no service..!"

Ouch! Talk about having somebody by the cojones!:rolleyes:

That would get quite, ummm, _interesting_ after a while....Discounts for 2nd, 3rd, etc., rounds?

Plenty of easier ways to do that already in existence.

Yeah, we had a bush shower setup in NSW where the hot water was just a 50 metre long black plastic pipe left in the sun. You needed to pump the water uphill to start it but that was all. As the water came from an ice-cold spring it was a good mix.
Later in Tassie we had the solar panels, water turbine (in the pipe) and battery rack for the water and power.

Cool it down by chucking a few branches over it...
Warm it up with a longer poly pipe.