Valous;3951781; said:I think sumps are good for adding the extra water volume. Now as far as price wise, just my 2 cents, they are only cost affective if its for a big tank or already have the materials around. Then only major down side is that if you are building your overflow then it can be kinda loud. But for me it actually helps me sleep, white noise.
Loud? I don't even hear mine. All I hear is the hum of the pump and that will go away when I finish enclosing my stand. My overflow is quieter than my ACs were.