Clearwater Water Clarifier for Hot tub Spa and Swimming Water Treatment for Pristine Crystal Clear Water (1L)
Reviewed 1 September 2026 · price checked live
Check price on Amazon →Overview
Clearwater Water Clarifier for Hot tub Spa and sits in our pools, hot tubs & supplies listings, where we rank by how buyers actually rate a product rather than by brand. The manufacturer says: For use with hot tubs, swimming pools and paddling pools for crystal clear water. Which can be caused by dead algae, skin cells, dirt and grime. Those are the seller's own claims rather than our testing, so treat them as a starting point. On Amazon it holds 4.5 out of 5 from 10,723 ratings. What that score is worth next to its rivals is set out below.
- Brand
- Clearwater
- Amazon rating
- 4.5 / 5 from 10,723 ratings
- vs Pools, Hot Tubs & Supplies
- level with the category median of 4.5
- Rank in category
- 9 of 49 rated pools, hot tubs & supplies we track
- Price position
- Among the cheaper options (category spans £4.99 to £40.00)
- How proven
- Well established, above-average review volume
How it compares in Pools, Hot Tubs & Supplies
Across the 49 rated pools, hot tubs & supplies products we track, the typical score is 4.5 out of 5. This one sits at 4.5, which is around the middle of the category. Ratings alone will not separate it from its rivals here, so price and the specifics below matter more than the star count.
It carries 10,723 ratings against a category median of 1,112. A rating from a large base is harder to distort and tends to hold up over time, so a high score here means more than the same score on a new listing.
On price it sits in the lower third of a category running from £4.99 to £40.00, where the midpoint is about £12.99. Cheaper than most while rating at or above the category norm is the combination worth looking for, and it is the main argument for this one.
Worked out from the 49 pools, hot tubs & supplies products in our catalogue, not from the brand's own claims. How we rank →
Key features
- Fast Acting Water Clarifier: For use with hot tubs, swimming pools and paddling pools for crystal clear water
- Effectively Treats Cloudy Or Dull Looking Water: Which can be caused by dead algae, skin cells, dirt and grime
- Transforms Unhygienic Environments: By binding tiny particles together so your filter can work more efficiently and remove the dirt/grime
- Easy To Use: by simply pouring the recommended dose (stated clearly on the bottle) whilst the pump is turned on for efficient distribution
- Clearwater is a BISHTA approved member and recommended by brands such as Bestway and Lay-Z-Spa for reliable, safe and high-quality water treatment
