ULTIMA-PLUS XP Spa Water Clarifier - Transforms Hot Tub Water From Cloudy and Dirty to Crystal Clear - Suitable for all Hot Tubs, Spas and Pools (5 Litres)

With some careful mastery, managed to clear a very cloudy pool (10,000 litres) in a day! Fantastic stuff Just a little tip, you must always get the PH right first, then things like this work like magic

Works well cleaned a jacuzzi and a swimming pool easy to use great value

Works well. Good value

Well it definitely works as advertised. I would advise that if you use it in a spa (1200litre) then I would use a little less than recommended. Be prepared for the result. I would suggest using a spa net to remove some of the big collections of residue. Other than that it works very well, and with the size of the container it will last for some time. This is well value for money.

Actually got this to use in my Bestway outdoor pool, rather than a spa/hot-tub. The pool is 13ft diameter, and all summer season I try to keep the water clean using chlorine, anti-algae etc. Now and again the water does get cloudy so I use this product. I worked out capacity of the water in the pool and calculated the required dosage. When added, I let pump run a good 4-5 and then left it overnight. In morning, water was noticeably cleaner & clearer. After running pump another 1-2 in the morning water was perfectly crystal clear. Would recommend.