Hmm I currently do have one control valve on the overflow pipe. However, the overflow pipe flowrate does not seem fast enough for the return pump, so I leave it fully open all the time.
If I close it, it would only serve to make the situation worse?
Return pump is a Rio 17HF - 4,600l/h
Overflow pipe internal diameter is around 32mm, external around 38mm.
To be honest, I bought this tank with the overflow piping so I'm not the one who built it.
Currently overflow is not strong enough for my return pump. I know I can add a valve to reduce flow rate on the return pump but do not wish to do so as don't want to damage the pump.
Also, overflow flow rate tends to fluctuate up and down.
Had a few occasions when the overflow failed completely resulting in pump run dry.
Really at wits end so would much rather pay someone build a new set for me
Am having some issues w the DIY overflow piping on my tank. Currently at wit's end trying to solve it.
Anyone willing to help me make a new set of overflow piping? Will be willing to pay a good sum.