Hey guy's, I just dropped of my tanks at AquaTrend to get them drilled, the probs. that the only twp bit's they have are for 1 1/4in. and 1 1/2in holes!!! I need two return for the SCWD and one for the drain. Should I wait and get 3/4in. returns and a 1 1/4in drain??? or go with 1 1/4 and the 1 1/2???? I;m measuring the inside of the bulk head. I've got the drain about 3in. from the top and the returnd about 6 and 8in. fro the top, should I make the returns equal highth, or make them off just a little for space and movement of pvc parts??? I need to make up my mind by tomorrow so I can get the tank rolling asap!!