My fiancé’s pool filter is leaking where the PVC piping connects to it. She has had a pool guy service her equipment, and I was able to meet him yesterday. He replaced the sand in the filter recently, but evidently something plastic cracked and now it is leaking. I watched him yesterday make an attempt to stop the leak, but it is now worse. I brought it to his attention that it looked like an O-ring was bulging out in one place and on the opposite side you couldn’t see the O ring. I would like to try a better repair Any thoughts, short of having to replace the filter? Thank you