Fresh water tank

dbbls wrote:

eHoefler wrote:
Install a valve in the overflow line. When full after filling, close the valve and arrive with a full load of water.

Just don't forget to open it when you start using the water pump.

Or don't forget to open it when you fill your tank, I saw the results of this when I guy I was traveling with to Alaska forgot to open the valve and the tank expanded like a balloon an broke the support structure for the tank. Myself and another guy spent all afternoon doing a fiber glass and metal repair to support his tank again. How I solved this problem after losing many tanks of water was to reroute the overflow line higher than the exit hole. I made a clip to hold the line up to the bottom of the floor about 4 ins higher than where it comes out of the top of the FW tank.