Hey all, as you know I'll be upgrading to a 150 eary next year. I have use a hang on the back overflow for many years but never a built in or pvc return lines. both supply and return lines have been flex hose. I'm planning to use a Mag 12 for return(in sump)Also planning to have one overflow in the back center. Anybody know of a site that has good ideas on plumbing a tank. Here's a few questions.
1- Should I go for a 2" or 1 1/2" hole(bulkhead) at the bottom of the overflow?
2- Should I drill holes in the upper two corners of the tank to run the return lines or should I just plumb the pvc up and over the back of the tank. I'm thinkin 1/2" hole(bulkhead) in the upper right corner and one in the upper left corner. Or should they be 3/4"(bulkhead)
3- Should I go Mag 12 in sump, Mag 12 out of sump or should I go with an Iwaki....I have read that the both will produce heat.
Any other thoughts?
TIA
Mark



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