well after a few months i finally got my new pump installed. i have a 110g tall dt, 45g refugium, 50g sump. i drilled my dt for a sort of closed loop, with 4 returns. but i only drilled 2-1 1/2" drains. so running the bean drains with 1 full siphon, and 1 emergency i can't really have a closed loop, so i have to run it through the sump. the dart i originally bought on the advise of a local dealer wasn't enough to pump upstairs. he wouldn't take the pump back for exchange even though it ...