I have a tank that already has a drain hole on the side I was thinking of using for a grow bed and was wondering if I could just run, my 1" pvc threw the drain hole then do an elbow up and then cut my bell siphon to go over that 1" pipe I mean I have to cut the siphon notches anyhow why couldn't one just go over that pipe? Is there a reason everyone goes threw the bottom of there tanks or would this work? Would also give more options for tank placement, and I think a cleaner overall presentation in some cases.