pump

[dat673]

Just bought 75 gallon tank with corner overflow. Would like to know what pump would be good for the sump in this tank I was thinking of a mag 7. I have a Maroon clown and a scooter blenny?

 

[mos90]

i guess it depends on how much flow the over flow can handle. considering head loss im thinking a mag 9 would be better. a mag 7 at 4.5ft will flow about 460gph. a mag 9 at 4.5 ft will be about 800gph.

 

[Cliff519]

You would need to match your drain size (the size of the bulk-head flange) to the maximum GPH that size of pipe could handle. Below is what I mean:

GPH / Drain Diameter size
200 / 0.58”
400 / 0.83”
600 / 1.01”
800 / 1.17”
1000 / 1.31”
1200 / 1.43”
1400 / 1.55”
1600 / 1.65”
1800 / 1.75”
2000 / 1.85”
2200 / 1.94”
2400 / 2.02”
2600 / 2.09”
2800 / 2.19”
3000 / 2.26”
3200 / 2.34”
3400 / 2.14”
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