Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
First off welcome to R2R!! If there are only 2 holes than one is a drain, usually the larger of the two. The smaller one will be the return line.Just bought my first saltwater tank. 180 gallon with two pairs of pressure drilled sump holes. Does that mean I run two separate sumps or run the both to the same sump
Ok so 2 will be overflows and 2 will be returns. When you plumb it just tie the 2 returns together and you will be good. Only one sump needed.No there's four holes. Two separate pairs on each side of the tank.
Plenty look also on YouTube 100s of video's !!!Ok cool thanks. Any threads on how to make a sump out of a 55 gallon tank?

