Sump not levelling out properly.

Vanica

Gambusia
MFK Member
Mar 22, 2014
329
3
18
Alberta, Canada
I recently purchased a 135 gallon with a siphon overflow and a sump. I can't seem to get it to level out. Once the pump starts running it sucks the sump dry. I know the system works as I saw it fully set up and running before I bought it. What am I doing wrong? I tried lowering the overflow box as low as it will go and still nothing.
 

piranhaman00

Redtail Catfish
MFK Member
Sep 15, 2009
1,917
553
150
Wisconsin
I want to say that the pump is pumping more gph than the syphon is but if you saw it running....

Can you post pictures of the overflow?


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brich999

Jack Dempsey
MFK Member
Jul 3, 2010
4,312
11
38
New Hampshire
Either valve the pump back or you dont have proper siphon running. Pics may help, what sort of overflow are you running? If its one with a "u tube" be sure there is no air trapped in the top of the U
 

Vanica

Gambusia
MFK Member
Mar 22, 2014
329
3
18
Alberta, Canada
This is my first syphon overflow. I am getting a bit of air trapped in the U tubes. Is there a trick to getting 100% syphon? I keep trying but always get an air pocket.
 

Vanica

Gambusia
MFK Member
Mar 22, 2014
329
3
18
Alberta, Canada
I will post pics shortly.
 
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