Multiple tank overflow system

[Ron Popeil]

I have three tanks combined to one sump. They are stacked on top of each other and one 3200 gph pump pushes water into them.

all three tanks have 1.5" overflows.

The top tank combines with the tank below it into a 2" pipe that then goes down to a 90 degree elbow and then horizontally to my sump. the lowest tank combines independently with this 2" horizontal pipe.

Apparently I have more water going in to the tanks than is allowed to drain because I have to restrict the flow into each system via ball valves so that they dont overflow.

What modification can I make to allow more water to drain, so I can boost my max flow into each tank?

Should each tank drain independently into the sump? Or combine the three overflows into a larger diameter pipe? Should I modify the horizontal pipe into more of a 45 degree angle?

Any suggestions would be greatly appreciated.

 

[kalapnath]

you could make the drainpipe bigger and you can also upgrade the overflow boxes to a higher gph overflow boxesthat would boost your flow into each tank also the 45 degree sounds good too use 2 45s instead of the 90 degree

 

[jeff@zina.com]

What modification can I make to allow more water to drain, so I can boost my max flow into each tank?

Bigger holes.

Seriously, do you actually need more flow through the sump from these? If not, bleed off some of the pump's return. Oh, by the way, my Pocket Fisherman broke...

Jeff

 

[jacksonpt]

Fully independent drains would probably help.
Bigger pipes would probably help.

How much either of those would help is hard to say, but they'll definitely help some. If you're talking about REALLY high flow, then full siphon is your best bet, but you'll have drill more to make that happen. At least to make it happen safely.