| Re: adding sump
People (myself included) try to put to much flow through the sump. Slower flow through the sump gives your skimmer more time to work. Most of your flow should come from powerheads or a closed loop in the display tank. I am not sure what flow will cause you problems with your 800 gph overflow but keep an I on it. If bubbles start forming in the tube you must increase flow.I am running close to 900gph through a hang on back that has two J tubes.
Micro bubbles form when the water crashes into the sump and from the skimmer output. With high flow through the sump the bubbles are not given time to rise and burst on their own. With a very large sump it shouldn't be a problem though. My sump is a 90 gallon 4 foot tank and when it was new with no lime in plumbing I did have some bubbles. I put another set of bubble traps in with very little success. |