Forum Discussion
GlennLever
Jul 12, 2014Explorer
Ok...Learned some more stuff today/night.
When I put the MH into storage a mouth ago the water system was working fine.
I thought it would be a good idea to drain the tank while it sat.
Filled the tank today, and everything works off shore water.
Closed the bypass, disconnect the water, the pump runs but no water anywhere.
It seems to build air pressure, let it run and open a valve and air comes out for a short time.
It acts like the pump suction from the tank is not under water (tank is 3/4 full).

I got ambitious, took the covers of the water station.

The filter is not clogged, the pump sucks on the suction side and builds pressure on the pressure side.

Traced the plumbing and the feed line comes through the wall and appears to go into the bottom of the tank.
Removed that fitting and there is no water, tapped along the tank and the tank seems to be empty.

So I hooked things back up and filled until I got water out the over flow. The gauge read FULL a long time before the water came out of the over flow.
Are there internal baffles in the tank?
The only thing I can think is the sensor is at the front of the tank, the tank is very shallow and long (runs the entire length of the basement roof between the frame rails), and the RV is in my driveway which has a pretty good slope.

I'm starting to learn a lot about the systems in this RV.
I left the tank full, I'm sure now I will have a leak out of one of the fittings, I hate plumbing.
I'll check everything in the morning, if no leaks put it all back together. If not will have to drain the system, clean the fittings, use a little Teflon sealant on the inside of the pipe where it goes around the nipple. These are plastic fittings and only get tightened to three foot pounds.
When I put the MH into storage a mouth ago the water system was working fine.
I thought it would be a good idea to drain the tank while it sat.
Filled the tank today, and everything works off shore water.
Closed the bypass, disconnect the water, the pump runs but no water anywhere.
It seems to build air pressure, let it run and open a valve and air comes out for a short time.
It acts like the pump suction from the tank is not under water (tank is 3/4 full).

I got ambitious, took the covers of the water station.

The filter is not clogged, the pump sucks on the suction side and builds pressure on the pressure side.

Traced the plumbing and the feed line comes through the wall and appears to go into the bottom of the tank.
Removed that fitting and there is no water, tapped along the tank and the tank seems to be empty.

So I hooked things back up and filled until I got water out the over flow. The gauge read FULL a long time before the water came out of the over flow.
Are there internal baffles in the tank?
The only thing I can think is the sensor is at the front of the tank, the tank is very shallow and long (runs the entire length of the basement roof between the frame rails), and the RV is in my driveway which has a pretty good slope.

I'm starting to learn a lot about the systems in this RV.
I left the tank full, I'm sure now I will have a leak out of one of the fittings, I hate plumbing.
I'll check everything in the morning, if no leaks put it all back together. If not will have to drain the system, clean the fittings, use a little Teflon sealant on the inside of the pipe where it goes around the nipple. These are plastic fittings and only get tightened to three foot pounds.
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