freshwater in tank, but no water

[Tweezz]

Hi folks, I have a 2004 Alpine 34 pusher. We took it out for the first time and had a problem with the freshwater tank. When the water level got down to 1/4 tank, the pump was not able to pump water anymore. The pump was running and the level was at 1/4 tank, but no water. Added a little water to the tank and the pump was able to pump water. Does anyone out there know if there is another valve that I should be dealing with? Do RVs have a water pick up in the tank? Any info is much appreciated.

[BFlinn181]

Usually the tank just has a hose outlet at the bottom or near the bottom of the tank. Was the RV level? outlet on the 'high side' could cause the issue, but most likely, the level sensors are notoriously inaccurate. You could check by finding the low point drain valve and the next time this happens, open the valve and see how much more water escapes.

[Tweezz]

I did have a visual on the water level and the gauge was correct. There was about 1/4 tank of water left. The MH was level.

[Stevegd007]

Maybe the pump lost it's prime. Happens sometimes. When this has happened, I have run an open faucet an after a minute or so you hear the pump noise change as it slowly begins to pick up the prime and move water again.

[ga traveler]

The fact that it started working when you added water, says you were low. Check your tank and find where the water line to the tank comes out. On my motorhome it is on the street side. My motorhome can look level, but if it is slightly off level, it will stop pumping with a quarter tank of water.