Loud drain syphoning noise

sponger0 · 12/12/2011, 07:24 AM

So one of my drains decided to start making some loud syphoning noises this weekend. Out of nowhere. I didnt do anything. But I tried a few things to fix it but doesnt seem to work. I turn my bal valve to min flow and I can still hear it. I comes straight down from the back of my tank and 2 90 degree elbows to go into the sump. Anyone with any ideas??

ezerasurfr · 12/12/2011, 08:59 AM

are you using a durso? there may be salt build-up in the air hole at the top of your standpipe either on the inside or outside (or both).

sponger0 · 12/12/2011, 09:05 AM

I think the hole is fine. Yes i am Using a durso style drain. I tried drilling a second hold in case...and still had the loud syphon noise.

12/12/2011, 07:24 AM	#1
sponger0 Registered Member Join Date: Jul 2009 Location: Virginia Beach Posts: 6,659	Loud drain syphoning noise So one of my drains decided to start making some loud syphoning noises this weekend. Out of nowhere. I didnt do anything. But I tried a few things to fix it but doesnt seem to work. I turn my bal valve to min flow and I can still hear it. I comes straight down from the back of my tank and 2 90 degree elbows to go into the sump. Anyone with any ideas??

12/12/2011, 08:59 AM	#2
ezerasurfr Moved On Join Date: Feb 2011 Location: New Jersey Posts: 663	are you using a durso? there may be salt build-up in the air hole at the top of your standpipe either on the inside or outside (or both).

12/12/2011, 09:05 AM	#3
sponger0 Registered Member Join Date: Jul 2009 Location: Virginia Beach Posts: 6,659	I think the hole is fine. Yes i am Using a durso style drain. I tried drilling a second hold in case...and still had the loud syphon noise.