When the pump turns off, my Hayward inline chlorinator (for tablets) makes a sucking/ gurgling sound for a few seconds. Does this indicate a problem/air leak in the system? I have no cavitation in the pump basket, and I don't lose prime while the pump is off, but I do have a small return side leak right at the equipment pad. I am trying to debug a DE-in-the-pool issue and am searching for causes while I replace hardware.
