CtDMonet

I used a friend's new saltwater hot tub, and the saltwater made my skin feel great. Not sure if it was confirmation bias (they told me it would, so that's what I felt) or if it's a real thing. I have normally very dry skin but my skin is too sensitive to use most lotions. I have a few tried and true, but for three most part live with the dryness. If it is a thing - should I convert my (~16yr old "Costco") hot tub that works fine (has had several major repairs/pumps/heaters/full jet replacement), or buy a new one? What are the cost benefits of converting (does it work)? Any advice is appreciated.