I got everything put together and tested and everything is working. I had problems w/ an elbow on the inlet for the overflow, so I'm just going with standpipe, but I need to extend it a little to raise the water level and to fit the screens I got. I tried both overflows on their own and they're working fine. The water level drops in the sump when I just use one, but I'm assuming that's normal because after leveling off, it keeps up. I'm assuming that's because of the water trapped in the other overflow? I did leave enough room in the sump so if the pump quits working, it can handle the water until the overflows stop (I tested that). I'm planning on final gluing and painting tomorrow and it should be completely up and running soon, def by the end of the weekend. I have to wait until I get paid to get more scrubbies. I'm going to order 200 and then gradually fill the rest up with other media.