My pump is humming.

basile · Jan 17, 2017

Is there something to be done for my return pump that's humming. Its been inactive for several months and now that i've started my system its humming.

Diesel · Jan 17, 2017

What kind of pump is it?

reefwiser · Jan 17, 2017

Have you taken it apart and cleaned it?

basile · Jan 17, 2017

Its an RO DC 5500; the thing is if i want to replace the impeller, that 3 year old model is no longer in production grrr a $300 X 2 gone

I'll be dismantling this afternoon to see how are the impeller but i had cleaned them before storage. The $$$ must flow it seems, if i have to buy new pumps, i'll buy the replacement impeller also.

reefwiser · Jan 17, 2017

If you put it in a container of water does it still hum? Sometimes the piping can cause a back pressure and will vibrate causing a hum.

Diesel · Jan 17, 2017

Some times it will take a few days in order for used pumps to run normal again.
I always drop them in a bucket of vinegar and let it soak for a day or two and run them in a trashcan for a week or so.
Most pumps should run normal after this.
If you have it already installed just let it to be.

jsker · Jan 17, 2017

I found the pump at marine depot link have you reached out to reef octopus? could be still under warranty

Blmain · Jan 17, 2017

Diesel said:
Some times it will take a few days in order for used pumps to run normal again.
I always drop them in a bucket of vinegar and let it soak for a day or two and run them in a trashcan for a week or so.
Most pumps should run normal after this.
If you have it already installed just let it to be.

That worked for me. I had an old protien skimmer that was cracked so I threw everything away and kept the pump. There wasn't a use for the pump at the time so it sat for a good 6 months. A couple weeks ago l plugged it in and the impeller was making an awful grinding noise. I threw it in a container of vinegar and let it soak for a day. Sure enough, the noise went away after a couple days.