Thanks, that helps alot. I kind of knew the return from the skimmer had to be above the water level in the sump but I was not sure. Only other question, is where and how would I put it "in line"?
As for the overflow, I think I will try the herbie style because I like the simplicity and the silence that most people seem to get. I will have to plumb my return over the back of the tank instead of back through the overflow (because you need both drains for the herbie method) but thats ok. I will use a Gate valve to restrict the flow instead of a ball valve. Anyways, I think its a great idea! I am though still wondering about what return pump to use for this method.
I had originally planned on using a Dart for the return but that may just be too much anyways. The drain is 2" (I forget how much GPH that is), so Im sure it could handle a Dart but maybe something smaller would be better? What do you guys think? I prefer an external pump for sure though. Oh I just realized that Darts can be throttled back too...Maybe thats the best idea then.
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