Water pump on fiver periodically pulses
My water pump, which seems to work great as far as pressure and volume, every few seconds, maybe every five or so, slightly pulses. You hear a slight thump and the lights flicker just a slight bit. I’...
Forum Discussion
Had a similar problem a couple years ago, but the pulsating became more and more increased. Eventually, I decided to buy a new pump after LOTS and LOTS of exploring searching for leaks.
After I pulled the old pump, I found the problem. It had 3 screws completely missing that held the impeller assembly in place. I found 2 of the missing screws and figure the 3rd fell into the underbelly and I'd never find it. So I installed a new pump and never had the problem again.
Check the screws on the pump itself. Make sure they are all tight and not sucking or allowing the seal to be broken, causing the water to back feel into the tank.
And just an FYI, it only did the pulsating when the water heater was on. When the water heater was cold, the pump never did the pulsing.
After I pulled the old pump, I found the problem. It had 3 screws completely missing that held the impeller assembly in place. I found 2 of the missing screws and figure the 3rd fell into the underbelly and I'd never find it. So I installed a new pump and never had the problem again.
Check the screws on the pump itself. Make sure they are all tight and not sucking or allowing the seal to be broken, causing the water to back feel into the tank.
And just an FYI, it only did the pulsating when the water heater was on. When the water heater was cold, the pump never did the pulsing.
