Ok gang..here's the scoop I want to add a ozonator before winter...as you all know I use my hot tub 4-5 times a day 7 days a week...and I don't think the winter is going to be any different (unless some miracle should happen in the next 3 weeks btw I have another dr lined up in case I don't like the pain specialist or my dr's decision) but....here is my problem, after much discussion between hubby and the dealer, hubby is reluctant to put one on as we understand that it makes the cover discolor. is there any truth to this?