humming pipe

luweiba · 08/08/2009, 07:30 PM

any ways to stop or lower the humming noise created by the return PVC pipe ? PVC pipe (hard not flexible) is 4 ft long from return pump to DT. Thanks

EverettReef · 08/08/2009, 07:51 PM

Install a section of spa flex or vinyl tubing after the return pump before attaching to the PVC.

luweiba · 08/08/2009, 08:03 PM

what causes the humming noise ? the return pump or the PVC pipe ? why a flexible tube between the return pump and PVC pipe will stop it ? thanks

EverettReef · 08/08/2009, 09:13 PM

Vibration from the pump impellor is being transmitted to the rigid PVC pipe. A less rigid material will cut down on the transmission. Even a 6 inch section of Spa Flex or vinyl tubing should reduce/eliminate the humming you are getting today.

qfrisco · 08/09/2009, 08:33 AM

I agree with EverettReef - the vibration's coming from your pump, which probably means your impeller needs to be replaced. How old is the pump/impeller?

Aquarist007 · 08/09/2009, 09:09 AM

Quote:

Originally posted by qfrisco
I agree with EverettReef - the vibration's coming from your pump, which probably means your impeller needs to be replaced. How old is the pump/impeller?

I don't believe everettreef was suggesting that the impeller needs replaced.
Solid pvc carries vibration where ever it comes from and it is and easy fix like he suggested

qfrisco · 08/09/2009, 09:15 AM

Quote:

Originally posted by capn_hylinur
I don't believe everettreef was suggesting that the impeller needs replaced.
Solid pvc carries vibration where ever it comes from and it is and easy fix like he suggested

Hehe - you're right. I briefly wondered about that as I was typing it. :-)

Just to clarify - I agree with everettreef that the vibration is being transmitted from the pump. A possible source for the vibration may be an aging impeller.

Mike31154 · 08/09/2009, 10:12 PM

Check your pump mounting as well. It may help to add some sort of rubber pad to your pump mounts.

VitalApparatus · 10/18/2009, 05:56 PM

So just attach a 6" flex tube using aquarium acrylic and clamps to the pump , and acrylic to the pvc?

Aquarist007 · 10/18/2009, 06:16 PM

VitalApparatus · 10/18/2009, 06:24 PM

OIC thank you!

speedo2wet · 10/22/2009, 08:24 AM

Thanks, I think i'm going to have to do that this weekend. I too am getting much vibration from my external pump; i can even feel it in the sump and am a little worried about long term usage. I will add 6" to 12" on the intake and return side of the pump and then place a bigger piece of rubber under the pump and see how it handles then.

Thanks.

08/08/2009, 07:30 PM	#1
luweiba Registered Member Join Date: May 2009 Posts: 33	humming pipe any ways to stop or lower the humming noise created by the return PVC pipe ? PVC pipe (hard not flexible) is 4 ft long from return pump to DT. Thanks

08/08/2009, 07:51 PM	#2
EverettReef Lounge Pariah Join Date: Feb 2009 Location: Everett, Wa Posts: 257	Install a section of spa flex or vinyl tubing after the return pump before attaching to the PVC. __________________ Bruce

08/08/2009, 09:13 PM	#4
EverettReef Lounge Pariah Join Date: Feb 2009 Location: Everett, Wa Posts: 257	Vibration from the pump impellor is being transmitted to the rigid PVC pipe. A less rigid material will cut down on the transmission. Even a 6 inch section of Spa Flex or vinyl tubing should reduce/eliminate the humming you are getting today. __________________ Bruce

08/09/2009, 10:12 PM	#8
Mike31154 Registered Member Join Date: Apr 2008 Location: B.C. Canada Posts: 1,555	Check your pump mounting as well. It may help to add some sort of rubber pad to your pump mounts. __________________ Mike Current Tank Info: 77g sumpless sw with rock, sand, a few critters, fishes & polyps. Lights, pumps.....

10/18/2009, 05:56 PM	#9
VitalApparatus Registered Member Join Date: Sep 2009 Location: at the LFS Posts: 841	So just attach a 6" flex tube using aquarium acrylic and clamps to the pump , and acrylic to the pvc? __________________ I try and I try......

08/08/2009, 08:03 PM	#3
luweiba Registered Member Join Date: May 2009 Posts: 33	what causes the humming noise ? the return pump or the PVC pipe ? why a flexible tube between the return pump and PVC pipe will stop it ? thanks

08/09/2009, 08:33 AM	#5
qfrisco Registered Member Join Date: Dec 2007 Location: Dallas, TX Area Posts: 1,389	I agree with EverettReef - the vibration's coming from your pump, which probably means your impeller needs to be replaced. How old is the pump/impeller?

10/18/2009, 06:16 PM	#10
Aquarist007 Registered Member Join Date: Apr 2007 Location: Hamilton, Canada Posts: 28,240 Blog Entries: 1	__________________ I prefer my substrates stirred but not shaken Current Tank Info: 150gal long mixed reef, 90gal sump, 60 gal refugium with 200 lbs live rock

10/18/2009, 06:24 PM	#11
VitalApparatus Registered Member Join Date: Sep 2009 Location: at the LFS Posts: 841	OIC thank you! __________________ I try and I try......

10/22/2009, 08:24 AM	#12
speedo2wet Sharks!!!! Join Date: Jul 2006 Location: Apopka, Florida Posts: 478	Thanks, I think i'm going to have to do that this weekend. I too am getting much vibration from my external pump; i can even feel it in the sump and am a little worried about long term usage. I will add 6" to 12" on the intake and return side of the pump and then place a bigger piece of rubber under the pump and see how it handles then. Thanks.