Aqueon Megaflow Overflow Max GPH?

[bjbass]

Does anybody know what the max GPH a single Megaflow overflow can handle in an AGA/Aqueon tank? I have a Megaflow 210 with dual overflows.

I have one maxi-jet 4500 for each drain that flows at 1300 GPH, but I have a T with a ball valve set up to regulate it. I am hoping I can get away with these two pumps so I can achieve roughly a 10x turnover rate, but I don't want to overflow my tank obviously.

 

[Narwhal72]

You want to keep the flow rate around 600 gph per box. You can push more through it but it gets really loud and doesn't surface skim as well. The best is around 500 gph per box. Keep in mind that the flow rate for the pump is at 0' head and will decrease dramatically as you push up against gravity.
Also Turnover rate is determined by T= 9.2(volume/flowrate) Where T= the number of hours it takes to turn over 99.99% of the tank volume one time. A good number is 4-5 times per day or more. This calculation is more accurate because it takes into account that you are mixing both filtered and unfiltered water in the same container (the aquarium).
Andy

 

[bjbass]

Well I have 6 90 degree elbows per return line. This is what I had to do to get it hard plumbed. Plus it is on an Aqueon pine stand. I bet I have about 6' to push the water, plus the elbows. It seems with all of that coupled with the fact that I have the T with a ball valve to relieve into the tank that I will be ok. I am filling tomorrow.

I figure I will open both ball valves all the way and turn the pumps on that way. Then I can slowly close them as the water rises in the tank and stop when it is at the level before overflowing on the floor?

 

[excuzzzeme]

The skimmer box dictates the water level in the tank. Set the skimmer at the max level you want the water in the tank. Allow it to drain the tank down and fill the sump until it stops on it's own. Now top off the sump to the max level you want. You are now all set and if you lose power there will be no overflows.

The overflows need to be greater than the return pump gph or you will flood the tank. You may need to throttle the return line to achieve balance.

Sumps don't always work on the theory that faster is better. If you have a 5-6 x turnover that is more than sufficient to handle a well-stocked tank.