trying to type fast, expect tp loose my connection. I am a Dixie Fire evacuee, in a campground without a lot of tools. My water pump isn't pumping water, however when on it creates enough vacuum to colapse the hose towards the water tank. I blew some air thru the hose leading to the tank, and with the fill valve open, I hear bubbles and air. City water provides proper pressure at sink. Is there a check valve and or tank air relief valve somewhere? thanks hope this makes it out
Open the valves att the tank. when water dumps on the ground, close them one by one and leave the dump valve closed ,until water stops hitting the ground. You must have the tank valve shut off .now and need to open it.
did just that, several times
Is this a new event?
Turn the fill valve off.
all valves are off
every thing was ok, started happening slowly, sure seems like an air vent valve of some sort
Depending on year of coach, look for the fresh water overflow tubing. Where it routes will depend on year, but it's possible something clogged it. Would think that might act as the air vent on the tank.
Please tell us what year and model coach you have. There is no "one answer fits all".
Sorry dodn't realize year wasnt on here anymore. 1987 36 ft Grand Villa ORED
The vent is under the hood , center of tank. The pump will pump water until the plugged vent stops it . But, if you have pushed air into the tank from the pump, there is not an air lock . The symptoms indicate a plugged inlet in the tank.
I'll look fri at mine .
At the tank, I only have 2 valves. One dumps and the other fills from city water. Both of these are on the same tank fitting. The tank draw fitting has no valve. The draw line goes directly to the pump.
If you overfill your tank with the hose connection, the overfill will exit somewhere. This "somewhere" is overflow protection and the air vent. Every fresh water tank has to have a functioning vent. Without one your tank can be damaged by excess water pressure or a vacuum.
If the water pump is collapsing the line from the water tank then it is not venting properly. If that is the case you should see when you open the tank drain that at some point it stops draining water still in tank or starts burping like the new gas cans will. If it drains normally out of drain valve I would suspect a blockage of some sort between tank and pump. Just my guess.
Also. If the tank vent was blocked you would not be able to fill your tank or even worse if it's not venting the pressure would build to a point that something gives. A fitting, a connection or worse the tank itself. If after some checking you suspect the vent. I would physically find it. Me. I would NOT force water into an unvented tank.