Overflow tube not holding water...anyone know why?

axia55 · 10/29/2007, 03:25 PM

I have a basic U-tube siphon overflow on my tank that had been working fine for several months. However, it has recently started to lose its siphon for lack of a better term. The flow through the tube gets visibly less and less. What is the problem and how do I fix it?

USC-fan · 10/29/2007, 03:30 PM

Most likely you return pump has gotten clog so it doesn't have the flow needed to keep a good siphon. Clean you utube and return pump/piping should fix this problem.

axia55 · 10/29/2007, 04:34 PM

I could increase the flow on my return pump since it usually only runs about 50%. Will that fix my problem if I bump up the flow a little?

USC-fan · 10/29/2007, 05:49 PM

Yes it should as long as the u-tube is clean.

10/29/2007, 03:25 PM	#1
axia55 Premium Member Join Date: Oct 2006 Location: North Canton, OH Posts: 993	Overflow tube not holding water...anyone know why? I have a basic U-tube siphon overflow on my tank that had been working fine for several months. However, it has recently started to lose its siphon for lack of a better term. The flow through the tube gets visibly less and less. What is the problem and how do I fix it?

10/29/2007, 03:30 PM	#2
USC-fan Premium Member Join Date: Sep 2005 Posts: 3,626	Most likely you return pump has gotten clog so it doesn't have the flow needed to keep a good siphon. Clean you utube and return pump/piping should fix this problem.

10/29/2007, 04:34 PM	#3
axia55 Premium Member Join Date: Oct 2006 Location: North Canton, OH Posts: 993	I could increase the flow on my return pump since it usually only runs about 50%. Will that fix my problem if I bump up the flow a little?

10/29/2007, 05:49 PM	#4
USC-fan Premium Member Join Date: Sep 2005 Posts: 3,626	Yes it should as long as the u-tube is clean.