These caps seem to be very loose in the threads when I screw them into the return jets. The pool builder used them last year when he closed and I was going to use them this year when I close myself, but they do seem to be very loose. I have to use a lot of Teflon tape to get them to at least give some resistance when screwing them in.
Are there any other types out there that work better, maybe rubber plugs?
Are there any other types out there that work better, maybe rubber plugs?