I have a Jacuzzi Gallery model jetted tub. I have had no issues with it for 7 or 8 years, it has worked flawlessly until last week. I was in the tub and it was functioning normally, then for some unknown reason the thing seemed to be putting out only 1/2 the power it normally would put out. This model does not have an air valve inside the seating area however it does have 2 non adjustable air valves located near the motor. I am not sure what has happened here with it. I tend to think that the air valve has gotten stuck.