Page 1 of 1
Micro bubbles coming from my sump return
Posted: Tue May 03, 2011 8:22 pm
by ramcharger1979
Anyone have any ideas why I would be getting micro air bubbles coming from my sump return on a freshwater tank? It was fine until Sunday morning and has now been doing this for about 48 hours. I know it is not hurting anything but it looks terrible.
Re: Micro bubbles coming from my sump return
Posted: Wed May 04, 2011 9:11 am
by RTR
Cavitating? Have you checked that the intake(s) is/are clear? Many pumps can only be restricted on the output side, Restricting the input frequently leads to cavitation and microbubbles. It can damage the pump.
HTH
Re: Micro bubbles coming from my sump return
Posted: Wed May 04, 2011 7:52 pm
by ramcharger1979
Thank you. I took it apart again and found a piece of a plant stuck in the intake. It is smooth flowing again.
Re: Micro bubbles coming from my sump return
Posted: Thu May 05, 2011 11:29 am
by RTR
Great! Cavitation is hard on pumps - it can really shorten their working life.
Re: Micro bubbles coming from my sump return
Posted: Fri May 06, 2011 1:32 am
by FrogSplash
RTR wrote:Cavitating? Have you checked that the intake(s) is/are clear? Many pumps can only be restricted on the output side, Restricting the input frequently leads to cavitation and microbubbles. It can damage the pump.
HTH
ditto and im glad you found the problem!