i will take the advice of the supports for the plumbing I've opted for 2 of the brs 2400gph overflows in addition to the existing over flow. the brs ones will have a 11/2" "t" oriented vertically with a cap on the upper end with a hole drilled in it similar to a durso stand pipe which i have on the 175g and is dead silent. the existing over flow will be a 2" durso more-so meant as a emergency drain. not exactly looking forward to drilling the holes but gotta do what you gotta do.
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