Hot Tub Skimmer


Well-known member
May 27, 2014
Clarksburg, WV
I'm in the process of rebuilding an old hot tub. I've gotten to the point i'm ready to replace all the old Jets, suction cover, skimmer cover, etc.

This is the skimmer i have on the tub, but I only have the cover. There are 2 holes behind it in the fiberglass. What is the purpose of the piece that fits into that hole? Its almost like a hose is supposed to hook to it, but there is no place for it in my tub. Any ideas? Here is another version that has a 90 degree elbow back there that would fit in the hole...

I cant seem to figure out why they are there.......