diy overflow

[blainep]

I've been considering using a PVC overflow for one of my tanks, from the reading I've done, some people swear by them, some swear at them.

So far, what I've read suggests using inch and a quarter pipe to build the overflow with a fast enough flow rate to sweep small bubbles out of the pipe.

Some people also use an aqualifter pump attached to the pipe going over the edge of the tank to pull out any trapped air.

No first hand experience yet, but I plan to be building/testing one in the coming weeks.