Drain issues

[Anonymous]

On my new 60g I have a 1" drain and 3/4" return, drilled on opposite ends of the back wall of the tank. I'm running a mag 7 and the drain will not keep up with the return. The only way I was able to fix it was by putting in a ball valve and throttling the pump down about 50%. This decreases the flow in the tank significantly. Any suggestion on how to fix this? Is it possible to drill a second drain if I remove about half of the water from the tank?

 

[mark78]

The drains max is about 600GPH, which is close to what the Mag7 is with the head pressure you have on it.

You need to use an elbow on the inside of the bulkhead to give the water a drop before it goes through the bulkhead. If you already have this, you may need a Tee behind the tank to allow air to vent.

 

[Anonymous]

I had two 1" drain on my 60gal to keep up with the pump. The return is 3/4", just like yours.

Try mark78's suggestion and see...

 

[Fishbreath]

I am running a Mag 9.5 on my 60 gal. My tank also uses a single 1 inch drain and a 3/4-inch return and the drain works fine. In fact I started out with a Mag 12 on this tank and changed it to a Mag 9.5 to make the tank less noisy. Even the Mag 12 worked with the 1 inch drain. I just saw your other post describing the drain being drilled into the back of the tank. The drain in my tank is in the floor. That must really be the difference but I'm not sure I understand why that is.

 

[ricky1414]

I had a 3/4" return on my 50 gallon when it was in operation. I went with a 1.5" drain, and everything was cool.