Was in china recently. The place where I was staying (like almost all buildings in the region) had a water heater that was solar powered on the roof. One day there's a leak from the roof, turns out the water heater had a busted pipe, these things happen.
Then I find out there is no bypass for the water heater, all water for the house passes through it, even cold. The only thing that can be done is to turn off the water for the house, no more showers or pooping unless I want to use a lot of filtered water until it can be fixed. Ok I guess I can deal with it until they can replace the pipe.
Turns out the solar water heater is made so shittily that the repair man says it's too hard to replace the pipe and would need to install a new unit, none of the original unit can be reused, not even the solar panel since its an all in one unit.
For the rest of the stay I couldn't shower or poop where I was living. But I did find one bathroom at a coffee house that was interesting.