120 Gallon Progress

[Skimmerking]

Originally Posted by mr_alberta

What are "stacks" in your overflow? Are you talking about the standpipe? If so, that isn't your problem. Mine is level with the top of my overflow.

yes Harvey if his stand pipes or stacks are at the top of his tank well "Yes" it will be a big problem its going to keep filling up from the sump until the water starts going thur the pipes. ANd if that means sucking all the water out of his sump to fill the tank. Well that would be the problem.
Harvey how big is your Sump compared to Nanoreefs...


Now Nanoreef is the pipes close to the top of the glass or are they close to the overflow.

how down are the pipes from the top of the tank?