Hey guys I recently purchased a house and now have a pool. The pool is in the neighborhood of 50-60 years old. Currently the pool has a booster pump running a pentair legend that's on its last leg and the booster pump is plumbed above ground which is really annoying. I am wondering if a polaris 360 would work for me, pool piping is copper and I have 3 3/4" returns, 1 skimmer and 1 drain at the bottom of the deep end. The returns do not seem to be threaded and they seem to be copper. I just put in a pentair intelliflo 2 pump in. Is there a way to adapt these non threaded possibly copper 3/4" returns to use the polaris 360 so I can eliminate the booster and external hose.