pvc overflow (odd design?)

savannah_az

Plecostomus
MFK Member
Jun 14, 2010
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az
So after making all the different pvc overflows i could find and never getting a great flow rate, I'm curious what would happen if i mimicked an overflow box out of pipe. 2 1.5" pipes capped at the bottom and then 2 3/4 inch pipes with a u bend at the top pvc cemented in and using a t joint on the output instead of a bulkhead. It seems so simple yet i haven't seen this done, is there a reason for that? am i overlooking a major flaw?
 
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