We have had a whirlpool from the Armstark company (Marin type) for about a year and have always used chlorine products, but were not thrilled with them (chlorine smell and dried-out skin). We even had to change the water every two months, despite all the products we put in. Then we came across SpaBalancer on the internet and read all the positive feedback. So we ordered some products and switched to SpaBalancer during the last water change. We have been using SpaBalancer products for about two months now and are thrilled. The water still looks the same as when it was refilled. No dry skin, no chlorine smell! We can only recommend the SpaBalancer products!
Silvia and Christian V.