Just getting a new 27 round pool set up with a 1.5 HP cartridge filter. The filter also has an inline chlorinater on it.
When I shut off the filter it violently for lack of a better word "baclflows" water shoots up out of the simmer and air shoots out of the return for about 10 seconds. like an eruption.
Cant see it staying like that any thoughts as to the cause. ?? I dont think I had air in the system as I prepped the filter first. its my first time using it new system.