My only complaints are a slight leak on one of the seals, and they shorted me on the riser tube foam. I only got a 3" piece of foam. Since the foam didn't reach all the way up the riser tube, when the water flowing out of the riser tube was disturbed at the top it would turn into a water fountain, hit the shoulder of the skimmer and deflect out of the sump. I ended up with 10 Gallons of water on the floor of my basement once. This could have been fixed by a) securing the small foam to the top of the riser tube with a tie strap, b) buying a longer piece of foam, or c) adding a gate valve. I went with c) because i end up with one less thing to clean. I even think that I have gotten better production since I added the gate valve, I think because you can fine tune the level perfectly.
As for cleaning the skimmer, I have never had it overflow after cleaning, in fact, it starts skimming right after cleaning, and I never have to adjust the level.
And I am not exaclty sure what crud could leak back into the tank?
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Brennan
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