water pump pressure

[dakranii]

yesterday while sanitizing the water system the pump worked as it should. Today I turn the pump on and it just constantly runs. It won't pressurize the system. I'm not sure what could have changed. Any ideas?

[OldCoot]

Make sure you have water in the tank and no faucets on. Might tap the water pump, it might have the pressure valve stuck.

[TURBS]

Air in the system possibility.
Most commonly the water heater.
Flip the relief valve up to expel the air.

Turn on the furthest water tap and work your way towards the closest to the pump.
Hot and cold.
Don't forget your outside shower if you have one.

TURBS

Sabre owners united!

[gettawaydriver]

Also check fittings and filter housings for leaks and the city water connection for leaking check valve.

[dakranii]

Originally Posted by f1100turbo

Turn on the furthest water tap and work your way towards the closest to the pump.
Hot and cold.
Don't forget your outside shower if you have one.!

do this while the pump is running? Let each valve open as I go or open then shut?

[TURBS]

Originally Posted by dakranii

do this while the pump is running? Let each valve open as I go or open then shut?

Yes while pump is running.

Open taps and let run long enough to make sure you have expelled all air then close.

TURBS

Sabre owners united!

[dakranii]

Never did get it working. I tried multiple times and quit before frustration ruined the entire trip. We settled for no running water this trip and I'll just have to trouble shoot at home now.

[beipers]

I freely admit I don't have your setup and am not familiar with it at all. However i used to have this problem all the time with my old motorhome because the tank fill and city water connection were one in the same and we used a valve to determine if you wanted to fill the tank our pressurize the system. If I forgot to change the valve back to the city connection after filling the fresh water tank, the pump would run continuously but the water would be sent back to the freak water tank.

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[steamboatscott]

Check the washer on the incoming hose. I had the same problem. Removed the old washer (which looked a little cracked, possibly from overtightening) and replaced it with new and - boom, it worked again.

[dakranii]

I'm guessing the problem has to be air in the system. It worked fine last Friday morning, I drained the system and refilled at camp Friday night, and it didn't work (ie, pump kept running, no water pressure). I'm going to setup again at home next weekend and see if i can get it working.

[Herk7769]

My two copper washed Zincs...

If there is still water in the fresh water tank (assumption I know, but check - especially if the camper was moved - the new "levelness" may have exposed the suction inlet on the water tank to air).

Check the antifreeze fill valve. Could you have turned it to winterize by mistake when turning the water heater valves?

[dakranii]

Thanks for the replies everyone. Thankfully it ended up being a simple fix.

I was messing around with the fittings on the pump. I unscrewed the input line, banged on the pump (for whatever reason, for lack of any other ideas?) then after I had looked at things like I knew what I was looking for, I screwed back on. I shut the valve off to the water heater to remove it from the equation, and it worked!

After I got it pressurized I opened the valve to the hot water heater and had to vent the air from it, but it worked again.

Seems to be good to go now.

What is your process for getting going? Close all faucets, fill fresh water tank at the campground, turn on pump, then open the faucets one at a time? Open, then close? I feel like there must be some order to do this.

[Herk7769]

Originally Posted by dakranii

Thanks for the replies everyone. Thankfully it ended up being a simple fix.

I was messing around with the fittings on the pump. I unscrewed the input line, banged on the pump (for whatever reason, for lack of any other ideas?) then after I had looked at things like I knew what I was looking for, I screwed back on. I shut the valve off to the water heater to remove it from the equation, and it worked!

After I got it pressurized I opened the valve to the hot water heater and had to vent the air from it, but it worked again.

Seems to be good to go now.

What is your process for getting going? Close all faucets, fill fresh water tank at the campground, turn on pump, then open the faucets one at a time? Open, then close? I feel like there must be some order to do this.

There are several checklists in the FAQ section.