2018 TT has been deemed Total Loss by insurance company

My rule is never leave city/park water on. Use it to fill the tank, use the pump. When the tank is low, refill off the hose. And make sure the pump is turned off unless you are using the water. You are very likely to hear the pump cycling. City water usually has more pressure, and unless you are using a GOOD pressure regulator, bad things are more likely to happen.

Yes, mistakes do happen, sorry for your loss, but thankfully you have a good insurance company. Trailer will show up at Coparts shortly.

Charles