Clearwater Scale and Stain Controller Treatment for Filter Pumps, Hot Tubs, Spas and Pools, 1 Litre & CH0009 Water Clarifier for Hot tub Spa and Swimming Water Treatment, 1 Litre

I was a bit sceptical on how good this would be however, I have to say it has made a massive difference to the water hardness and it is now crystal clear. Simple dosing instructions, depending on the size of your tub. Our tub is 1600 ltrs and this will last the whole season.

This certainly seems to do what it says on the bottle. Followed the instructions and added a larger initial dose, that struggled to clear the initial stains, but daily filter cleaning and a second dose a week later and we are stain free. We live in a hard water area and time will tell whether the scale control work

Great product that helps reduce scale but unfortunately instructions are not very clear I had to resort to YouTube to help me.

Had a hot tub and had too much copper and iron in it but prod it didn't work very well

I buy this all the time now woukdnt change to anything else

It clear the limescale from the water as well as the pump, very easy to use and will be using it every week as I live in a very hard water area

Just what you need to keep your hot tub clean

Easy to use and works well