Water tank filling mod
A modification I made to more easily fill my fresh water tank. I installed a 1/2" threaded 3 way ball valve in the area of my water pump. I connected the input to the valve to the outside hose connect...
Forum Discussion
rjniles wrote:
My RV has a gravity fill port but when I stick a hose it it to fill it constantly burps and spews water back from around the hose. This mod eliminates all of that.
Mine did that too. My tank filler neck hose is visible inside the sink cabinet and connects to the tank top through a hole in the floor. I checked for kinks and everything was a smooth curve. The problem was the water was accumulating in the fill hose. The air in the tank also couldn't escape through the vent tube fast enough so air burped back up through the filler neck hose as the pressure air compressed in the tank.
I solved the problem by replacing the clear 1/2 inch vinyl fill tubing i used with a piece long enough to make it all the way into the tank. I no longer had water backing up into the tank filler neck hose. As the tank fills, air in the tank comes out the vent and up the filler neck hose without burping water out the tank fill opening. When the tank is full I hear gurgling just before water runs out the tank fill connection indicating the tank is full.
