Hi,
We own a Vita Spa which is about 2.5 years old. Recently, I noticed some of the larger jets (which are removeable and interchangeable) have had their plastic "pitted". The part that is pitted is not the face of the jet, but a plastic tube that comes off the back and inserts into the jet housing body. Eventually, the little plastic clips on this tube that hold the jets in place wear down and break off allowing the jet to float out into the spa and it can't be put back into the housing because the clips are worn or broken so it won't stay in. By the way, I don't swap the jets around -- I normally never touch them -- I set them to a certain flow level and leave them be.
I took a jet to the dealer, but he said it was "chemical abuse", citing the fact that the plastic was all pitted. He suggested not using bromine and only using Nature 2, as he felt the bromine was eating away at the plastic (although it hadn't harmed the other parts of the jet face, just this plastic tube in back). To me it seems more like poor construction for this part.
I've had two other hot tubs in the past 12 years and always used bromine and never had it eat away at the plastic or anything else for that matter. I also make sure the pH is always balanced, and if anything, I try to keep it on the high side of normal (~7.6) to make sure I don't get any acid corrosion inside the plumbing, pumps, etc. I'm pretty strict about my water maintenance, so the idea of the water damaging the plastic is odd to me.
Has anyone else had any problems with their spas having jets or other plastic pitted or worn away from bromine or anything else?
PS: At the dealer's recommendation, I switched to Nature2 for the time being. Of course, when I asked the dealer if I needed to refill the tub with clean water (since mine has bromine in it) or if I could just put in the Nature2 cartridge, he said I could just put the Nature2 cartridge in without dumping the brominated water. Nature2 says I absolutely must dump the brominated water first and refill with new water before using their cartridge (which I did anyway). So, I'm not sure this dealer knows what he's talking about.
Thanks,
-- Vinnie