We have had an Aquavia SPA whirlpool since this year, water capacity approx. 750 litres, with three loungers. Despite the built-in ozone system, we have had difficulties getting to grips with the cleaning and clarity of the water after an evening in the whirlpool. Since we have been using the SpaBalancer in combination with the UltraShock, directly after bathing, these difficulties have gone, because the products really work really well. In addition, we clean the filter with FilterClean and our water is crystal clear. The foaming has also almost completely disappeared. We were really sceptical in view of the price, but the products are worth every penny and make it much easier to look after the whirlpool. We, my wife and I, can recommend the products with a clear conscience.
Christian G.