That is a shame about your camper. For the insurance for our current TT and our previous Motorhome, the policy included complete replacement for the first 5 years. If your policy has this too, is the insurance company responsible for finding and delivering the replacement? That might be worth asking your agent about.
As for the shower, it is a tough break. In our TT the bathroom is right next to the master bedroom, so we probably would have heard the water running. However, if the A/C was on, we probably wouldn't have noticed it.
Running off the pump is a good solution if you don't use much water, but for us, it would be a major pain. Even with a 500 gallon fresh water tank it would be a major pain. We use about 10,000 - 12,000 gallons of water a month at our sticks and bricks. I imagine we probably use 5,000 - 6,000 gallons a water per month at our seasonal site. Even with a 500 gallon fresh water tank, we'd be filling the tank 2 - 3 times per week. With our 40 gallon tank we'd be filling it several times a day.
I hope you are able to find a replacement for your beloved TT. I personally would not want to buy back that trailer. If water got into the walls, which it most likely did, it will not dry out easily without opening up the walls. If the insulation is wet, it will trap water.
Good luck!
-Michael
