Originally Posted by Un5tab1e
Thanks for the pic. I thought the water went through the teeth and the bulk head to an external box that had had the actual drains. I'll have to drill another hole. Sorry I have never used a sump b4
You can do an external box which is REALLY cool but you still need the internal box. that is the one that controls water level. if you do an external box then the internal box can be VERY thin. google "ghost overflow" for great pics of how that would work.
the best advice I can give you is plan very carefully before you do anything. this is a slow process with GREAT rewards. I rushed my existing 120. it is a great reef but I spent ALOT of money fixing it once it was up. it is much cheaper to do it right once. look at as many options as you can before you make a decision.