Plugged Return Line Newbie

[aylad]

I have no idea--I just wanted to pop in and let you know that forum traffic slows way down this time of year, so you will probably get responses, but it may take awhile to get them. Don't give up!

[BigDave]

Maybe it leaks and the previous owner just retired it in place?

[saabmarine]

It doesn't leak, I pressure tested it. And it's plumbed separate. All other return lines go through one pipe, into the ground, and split in a manifold somewhere underground. This one return has it's own pipe. Is there any reason you'd want one return to bypass the automatic chlorine feeder? I have a T just before the feeder which is capped off as well and looks like it might line up with this capped pipe.

[CarlD]

It's a mystery. The line is good, just capped?