Overflow Surging

[rffanat1c]

Can anyone tell me what is going on here. New used setup. 90 gallon with Aqueon proflex sump. Mag drive 9.5 pushing through 3/4 ID return.

https://drive.google.com/file/d/1wyfbfVkse5GeLHlVgN2KYeAkZHtt-Pee/view?usp=drivesdk


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[Vinny Kreyling]

Can you slow the flow with a valve?
Looks like you are pushing too much water.

 

[neilp2006]

Too much flow, siphon overdoes it.

Tune it down with a gate valve


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[rffanat1c]

Figured it out. Tried a lesser pump with no change. It was the drain line not being straight. Now it is fine. Thanks


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[mcgyvr]

Yep.. flowrate too high.. Its flushing..
Add valve on output of return pump to slow the system flowrate down..
or convert to herbie (over top return),etc...