Basic RV water system......
![](http://www.marxrv.com/plumbing/blkdia1.gif)
Pump discharge and city water connect and feed the same plumbing system so it everything works on city water than everything works using pump......provided
You have fresh water in the tank for pump to suck up
The pump is turned on and all air is removed from system by opening faucets while pump is running
You wait long enough for water heater tank to get filled (6 to 10 gallons depending on size of WH)
The pump inlet strainer is not clogged
There are no air leaks on pump suction side
The 'winterizing kit' valve (if equipped with one) on suction side of pump is closed
The pump actually runs.......no blown 12V DC fuse
And it being a MH.........do you have valves/switches on a water panel that have to be set to 'normal' or 'pump' vs having the valves/switches set to 'fill' or 'city water' etc.??
So.......
Go out to your trailer.
Turn pump on and see if you have water flow. IF not check the above listed items.
ON EDIT:
Save that pump you replaced.....you will probably be able to use it as a spare or as a water transfer pump or as a anti-freeze pump.
It was probably still working OK........you just need to find YOUR issue.
Is it time for your medication or mine?
2007 DODGE 3500 QC SRW 5.9L CTD In-Bed 'quiet gen'
2007 HitchHiker II 32.5 UKTG 2000W Xantex Inverter
US NAVY------USS Decatur DDG31