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RamblinAnne's avatar
RamblinAnne
Explorer
Jul 24, 2017

Water pump running but nothing on

I've been living in TC for about 2 months now and it's been my experience that my water pump only turns on when a) water is running or b) after it's been off for awhile and I turn it on so it fills all the lines.

However, the last few days, I've been hearing it turn on intermittently for a half of a second every 30 mins or so. My initial reaction was PANIC, thinking there was a leak somewhere. I searched everywhere and followed every water line I could. I took off panels and removed drawers so that I could get a good look at the water lines to try and find the leak. Nothing. I see no sign of water anywhere. There's a few points (ie: under/behind my fridge) that I can't quite see but I don't think there's any leaks. So what is going on? Why does my water pump keep putting water in the lines? Could it just be a gravity thing where water is falling down the lines? I can't help but freak out every time I hear that vibration noise of my water pump, wondering where it's going. Thanks in advance for all the help!!

14 Replies

  • Mine did that until I installed an inline discharge check valve. I see that someone has already suggested that, but it did work for me. JMO
  • ScottG wrote:
    Sock puppet eh?
    Mod notified.


    so sorry! I had an account I didn't even know about. I guess I made it a long time ago and it was logged in from this computer I haven't used in awhile. I notified the moderator to delete it along with the post.

    Anyway, best answer I got was this:

    Short term workaround: remember to turn off the pump whenever you don't use it. Never a bad idea, especially when you leave the camper.

    If there really is no leak an all faucets are closed, there is only one way the pressure can go: From the pump back to the feeder line. The fact that it has always been loosing pressure, but more slowly,would indicate either that or a leak.

    Normal behavior is that it holds pressure more or less indefinitely. With the small exception that the pump may briefly run when the water heater was heated, then turned off and cools down.

    Check the pump head and check valve; disassemble where needed. Something may be dirty, clogged, broken. Either that, or an undetected leak.