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ph increaser for pools and hot tubs
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pH Plus Increaser (1kg)

SKU: CH0005
Sale price £12.99
In Stock
  • Fast dissolving pH increasing granules
  • Raises pH level in hot tubs when too low
  • Enables chlorine to work more efficiently
  • Helps maintain comfortable water conditions and protect equipment
Spring Showcase

Spring is the perfect time to give your outdoor space and your wellbeing a seasonal refresh.

Until the end of March, get 10% off using the code SPRING10.

Offer ends on 31.03.26 and applies only to full-priced items.

*full offer terms & conditions
Express Delivery - £4.99

Delivered within 2 working days if ordered by 2pm Monday-Friday

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On orders above £20. Usually delivered within 2-4 working days.

Product Details

What is Clearwater® pH Plus for?

ClearWater pH Plus is the best way to increase a hot tub's pH levels if it falls lower than 7.3.

Incorrect pH and Total Alkalinity levels can impact the water quality and the experience for the user and results in chlorine imbalances.

The recommended pH balance is between 7.2 and 7.6. When pH levels drop below 7.2 acidity increases and pH increaser is needed.

How does Clearwater pH work?

ClearWater pH Plus is a chemical component that introduces alkaline substances into the water, neutralising acidic components and raising the pH.

Clearwater pH Plus - Quick Start Guide

Step 1: Test water. If pH levels are lower than 7.2, use pH Plus

Step 2: Measure the quantity you need (refer to the label). 1g of pH minus per 100L of water to lower pH by 0.1

Step 3: Dissolve pH granules in a container of warm water. Pour dissolved mixture into the hot tub.

Step 4: Run the filter and leave for 4hrs. Retest and repeat if needed.

As with all chemical products, time should be taken carefully read through instructions and warnings before using.

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