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I would suggest going by your dealers to compare and be sure yours is loud and if so than ask your dealer to replace it , it is a warranty item and as the spa DR mentions most likely a faulty o-ring.
My dealer tells me the noise made in the air or diverter valve (I'm not sure which it is) next to one particular seat on my '06 Optima is normal. The seat has about a dozen small jets and the large whirlpool jet on the side and I do not recall it being so loud when testing the tub at the dealers.It makes a high pitched whooshing noise, not quite a whistle and it can be managed by turning the corresponding air diverter off, but is hard to hear other talking in the tub when in that seat.What are others noise experiences? Is it normal to have a fiar bit of noise so that you have to raise your voice a little to be heard in the tub?regards
Getting used to it doesn't make it right, I'm 33 years old and as soon as I get used the goverment influence on the American family I well find myself hiding in a root cellar to pray, or under fire bc I wont give up my guns. You shouldn't have to get used to anything that isn't right.