Clearwater pH Plus Increaser

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The Clearwater pH Plus Increaser is a 1 kg granular formula designed to raise and stabilise pH levels in hot tubs, spas, and swimming pools. It dissolves readily in water and helps bring low pH readings back into the recommended range, improving water balance and protecting both equipment and bathers. Overall it is a straightforward, no-fuss product that delivers reliable results when used as directed.
Key Features & Specs
| Format | Fine granules that dissolve quickly when pre-dissolved in a bucket of water before adding to the pool or spa |
|---|---|
| Net Weight | 1 kg resealable tub, suitable for multiple treatments depending on water volume and current pH deficit |
| Compatibility | Suitable for hot tubs, spas, inflatable pools, and above-ground or in-ground swimming pools |
| Purpose | Raises pH when levels fall below the ideal range of 7.2 to 7.6, preventing irritation and equipment corrosion |
| Active Ingredient | Sodium carbonate based formula, a commonly used and widely trusted pH raising compound |
| Dosage | Typically 10 g per 1,000 litres raises pH by approximately 0.2 units; always retest after 4 to 6 hours |
| Brand | Clearwater, a UK-based brand with a broad range of water treatment chemicals for leisure water applications |
Best for: Hot tub and pool owners who regularly monitor their water chemistry and need a reliable, easy-to-use granular product to correct low pH levels and maintain a safe, balanced swimming or soaking environment.