Quote:
Originally Posted by EDJFA
I'm in the too late now camp with ca1ore. Need to work with what I've got.
Is it possible, maybe advisable would be a better term, to add a third and maybe fourth hole in each overflow to set up a dual BA system with the fourth hole being for the return? Quick measurements (eyeballing really) tell me that the current holes are 1.5". There's a bit over 3" between them. If I drill two more holes, one 1.5" for the emergency drain and a smaller one for the return, would that ruin the integrity of the bottom of the tank in those areas?
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First and foremost you have to find out if the bottom is tempered or not. Some tanks are; but many are not. Not sure if your tank is a Marineland or not? Mine is and the corner overflows are tight with just the two holes, not sure you'd be able to fit in a third. The other thing to consider is that both corners must be active on some level to prevent stagnant water.