Scubadawg's 187 Gallon Tank Journal - Edmonton

[FishyFishy!]

Originally Posted by sphelps

You could try it without the tee, since you're really just putting a small amount of flow through it, it probably won't matter much. Could always add the tee later.

Don't forget about the other option I mentioned regarding a straight herbie overflow with two back ups. Would look like this:

I like this option the best. I would leave the second back up drain threaded so that if you wanted to drain the overflow to clean it, you would just un screw the drain pipe and re-open the ball valve to drain it. Would make for nice easy cleaning with the safety of redundancy