Quote Originally Posted by flienlow
Well I changed everything over to 1" pipe. I had a few issues where the gap between the siphon and stand pipe was restricting the flow, but have that sorted now. She drains really well. Tonight I will silicone the screen pipe to the grow tub, and fill it with media tomorrow. I also need to change my diffuser as we spilled a lot of water on the floor.

Still pending final test.

Just a little good clean fun with fluid dynamics
Just to reiterate since I can't completely see what's going on from the bell siphon to the fish tank... make sure there is some added pipe in such a way that it does not allow the "exit pipe" to create a siphon all the way from the grow bed to the fish tank.