The jets in the spa seats of the pool are putting out too much water at a pretty good pressure. I've tried turning the adjustment nozzles on top, positioning them all the way closed, and still the jets won't cut off. I believe this is effecting the way the polaris is running because too much pressure is being sent through the jets, lessening the pressure the polaris needs to run. What can I do? Do I need to replace the jets? The pool is about 12 years old.