DIY Weir

[hummer]

looks great, hope it works great too , are u going to put a air pump onit?

[melev]

If anything, it would be tubing going into the intake of a powerhead or an Aqua Lifter. Those work great at sucking out trapped air and keeping the weir full of water. (The nipple can get clogged from time to time, so this should be watched out for.)