thanks blue. i didnt have pvc glue, so i just used some silicone to make somewhat of an air tight seal. i was too excited to drive to the hardware store to buy glue, lol. also, i made my sump to the foot print dimensions, and boy was it a tight fit. i actually had to trim a little of the pump base plate to make it fit.
you are also correct about the wedge pipe setting. i set it to the bottom of the cup at first, and within half an hour, i was overflowing. i ended up just opening it 100% and still the bubbles rise all the way to the top. this pump is very powerful!!! i am very happy with this skimmer and it hasnt even been a day. again, i didnt expect the skimmer to be this big. when i first got the swc200, i thought that was a big skimmer and i thought the collection cup was huge.....especially being a previous tunze skimmer owner. when i saw the 250A collection cup, i was tripping out.
what depth of water do you have your skimmer in again??