overflow plumbing

[Nano]

thats part of it yes, but I cant remember the other thing I'm thinking of, now my numbers are going to be inaccurate here, but I read something about the diameter having a max amount of gph. so say you have 1" pipe, (again Im not accurate here) with one inch pipe you could max out at 600ghp like that would be the maximum amount of water that could pass through in an hour. but again I dont think thats the accurate number.