My pump is humming.

[basile]

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]

What kind of pump is it?

 

[reefwiser]

Have you taken it apart and cleaned it?

 

[basile]

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]

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]

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]

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

 

[Blmain]

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.

 

[nervousmonkey]

Try going here for an impeller for that unit:
http://www.coralvue.com/rodc-water-impeller
or look around for parts for the pump here:
http://www.coralvue.com/pump-parts

 

[saltyfilmfolks]

Spit in the bushings and on the impeller assy and shaft.
Or buy a reef safe lube.

 

[basile]

Wow thanks for all your response, will do your suggestions. After cleaning it it seem to do less humming ; the pinch is lower and not as pronounced .