I have inspected the skimmer thoroughly there are no cracks or holes. During normal filter operation there are no issues; once i put on the adapter, hose and robot i can hear cavitation in the skimmer and i can also see bubbles in my pump basket through the lid. All my hoses are new and robot is new; same thing happens when i put on my manual vacuum head as well. this cavitation with all the bubbles doesn't seem to allow correct filtering. Any idea's on this ?
the pump is new the filter ball top valve is new; I have inspected all the hoses as well.