After I, as a new whirlpool tub owner, did not get on with the products supplied, I switched to SpaBalancer after a few weeks. It took a few days until I had clear water, as the water is very hard here.
In the meantime, I can achieve a perfect result with the given dosing instructions. I have a SPAtec 750b pool. The water is soft and does not smell. I am very satisfied with Spabalancer.
Uta H.