I am stomped with the problem I am currently experiencing and hope someone can point me in the right direction. Recently my RSR Peninsula started making loud noise from the overflow box. The water is flowing into the emergency drain and making that suction noise. I have an upgraded precision Gate valve which is now fully turned to the left and should lower the water below the emergency drain. The water is not going down! I’m not sure if the gate valve is working properly but I don’t understand how. The the main drain pipe that goes down to the sump is connected directly to the clarisea ask-5000 fleece filter and everything on the clarisea seems like it’s working. Has anyone else experienced something like this ?
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