I have a pool spa combo. Pool jets and spa jets are on separate pumps. Spa has 4 jets. One of the jets bubbles a lot and displaces water when the blower is on. I tried covering one of the other jets in the spa and the jet that bubbles over calms down and acts normally. My assumption is that the pump that feeds the jets isn't powerful enough to feed all 4 jets appropriately. So Im thinking I'd like to get a more powerful pump. I'd like to get the most powerful pump that my spa jets can support. How can I determine what size or output my spa jets cans handle safely?