diy overflow

[golf nut]

Do you have a pic of what you built, it would be easier to troubleshoot.

[Chase31]

good article found by another refer its posted not that long ago here http://www.aquaticplantcentral.com/f...ge-system.html

this will not work the way it is you need a hole where it goes over the tank also a check velve there. this design is poor will work with a couple changes. check out the links above thay have a design that works realy well.

Bill

[Bloodasp]

best guess i could make would be that the air hole is too small. As stated it would be great if you can post a pic of the one you made.

[golf nut]

Did you Prime it properly?

[Bob]

i have two overflows ..one with the air flow....one without
I like the one without the best....never had any problems...just use a pump that is rated a little higher

[Steve_the_nucks_fan]

here are a couple pics of what i built.
for who ever asked if i primed it properly yes i did i filled all the chambers with water. anyways if you can help that would be great thanks everyone..