Forum Discussion

jorn's avatar
jorn
Explorer
Apr 21, 2020

Water Pump Being Weird. Is it dead?

My pump is being weird.

I've charged the water lines via city water, and all is well. No leaks detected. But when I try to run the pump off a full water tank, it seems to struggle a bit. When I open a faucet, I do get water, but at sporadic pressure and with intermittent air. When I shut off the faucet, it cam take up to 10 seconds for the pressure to return enough for the pump to set off. Or, it can take several minutes! Once it does, it never comes back on, so I highly doubt a leak is to blame.

Is this the sign of a dying pump? (It shows a 2015 manufacturing date.)

Thanks!
  • X3 on the inlet strainer, next I would check sediment, and don't forget to check your outside shower to see if it's cracked or left on. If all else fails, replacing the pump is pretty straightforward.
  • Yup, you need to check for air getting in on the suction side from tank to pump.
  • wa8yxm's avatar
    wa8yxm
    Explorer III
    The #1 Suspect is the pump inlet strainer.. If you did not properly winterize this part it may be cracked. Then follow the inlet line all the way to the tank.. IN The tank there may be an "outlet Strainer" as well (is in mine.. 2 of 'em originally only one was in use).. it may be "Slimed".
  • Try adjusting the pressure points.
    All 4008 series pumps are adjustable (allen screw near the pressure switch)
  • sounds like your getting a bit of air when it sits, pull out re check .figure out where that shot of air is getting in.
  • wnjj's avatar
    wnjj
    Explorer II
    Except when you can't find the parts, or they cost half the price of a new pump.

    It can't hurt to take it apart and make sure there's nothing caught in the valves. Being that new it's unlikely to be failing outright.
  • cavie wrote:
    Pumps are very much rebuild-able and easy to do. Amazon is your friend.
  • Pump are very much rebuild-able and easy to do. Amazon is your friend.