Ratpack
Active Member
I have a Reef Octopus skimmer that you adjust the water level by turning the standpipe. I would rather add a gate valve for a little better control, but cannot figure out the size. It is gray, so I thought schedule 80, but a standard 1 1/2" schedule 40 fitting will not work. Does schedule 80 have a different size for 1 1/2"? It looks close to the schedule 40 fitting just just a bit bigger so it won't fit.