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pH minus 1.5kg
£15.95
Keep your spa water balanced and comfortable with pH Minus. This treatment safely lowers high pH levels, helping maintain clear water and a relaxing hot tub experience.
- Product description
- Specifications
Maintaining the correct pH balance is essential for clean, clear and comfortable spa water. Our pH Minus (1.5kg) treatment is designed to safely reduce pH levels when test results show that your pool, hot tub or swim spa water is too alkaline.
When pH rises above the recommended range of 7.2 to 7.6, water can become cloudy, scale can begin to form, and sanitising chemicals may stop working as effectively. High pH can also lead to sensitive skin or eye irritation, reducing the comfort of your spa experience.
By lowering pH to the correct level, our pH Minus granules help maintain balanced hot tub chemistry. This keeps water comfortable for skin while supporting sanitiser performance and protecting the internal components of your spa system.
At Hot Tub Stores UK, we recommend testing your water regularly with 3 Way Test Strips, which measure pH, free chlorine and alkalinity levels. If you do not have test strips available, signs of high pH can include cloudy or hazy water, unusual odours, foamy water, algae growth, staining or equipment performance issues.
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| 1.5kg tub of pH Minus granules |
|---|
| Designed to safely reduce high pH levels in spa or pool water |
| Helps maintain ideal pH balance between 7.2 and 7.6 |
| Supports effective sanitiser performance and water clarity |
| Suitable for hot tubs, swim spas and pools |
Nationwide delivery and professional installation service
Our certified engineers deliver and install hot tubs safely across the UK, including full electrical connections.
Lower high pH levels
pH Minus helps reduce high pH levels in spa or pool water. Keeping pH within the ideal range improves water comfort, clarity and overall water chemistry balance.
Test your water regularly
We recommend testing your spa water as often as possible using 3 Way Test Strips. This allows you to monitor pH, chlorine and alkalinity levels and correct imbalances quickly.
Correct high pH levels
If pH is above 7.6, add approximately 10g of pH Minus per 1000 litres of water. For example, around 70g is suitable for 7000 litres of water.
Simple measuring guidance
For quick dosing, one heaped teaspoon contains approximately 9g of pH Minus, making it easy to measure smaller adjustments when balancing your spa water.
Add with circulation running
Always pre-dissolve the product in a clean plastic bucket filled with water. Ensure your circulation system is running and slowly pour the solution above the return inlet for even distribution.
Safety notes
Never mix pH Minus with other chemicals. Always add product to water, not water to product. Handle outdoors or in a ventilated area, wash hands after use and store in a cool, dry place.
Loved by customers across the UK
Don't just take our word for it, here's what our customers say.
ContactGreat service from start to finish. David in the Cardiff shop was very helpful and not pushy at all — can't recommend enough. The delivery team were brilliant, friendly and...
Verified Customer
Bought a hot tub from Jeff a few years ago and it's been brilliant ever since. They always provide great aftercare and answer any questions I have. I'd recommend them...
Verified Customer
Clarice at Newbury helped us choose the right hot tub. She was professional, friendly and answered every question we needed. We'd definitely recommend Hot Tub Stores UK to anyone looking...
Verified Customer
Nibh scelerisque morbi euismod dis. Consequat faucibus sed massa tincidunt ac id. Hendrerit lectus arcu vel et nisi. Ipsum viverra curabitur convallis a ac dictum viverra sollicitudin. Ullamcorper semper iaculis.
Mel Maggs
Nibh scelerisque morbi euismod dis. Consequat faucibus sed massa tincidunt ac id. Hendrerit lectus arcu vel et nisi. Ipsum viverra curabitur convallis a ac dictum viverra sollicitudin. Ullamcorper semper iaculis.
Louise Stone
What a fantastic experience finding our very first hot tub. Jeff went above and beyond to find the right tub for us and even delivered it in time for my...
Verified Customer
Great service from start to finish. David in the Cardiff shop was very helpful and not pushy at all — can’t recommend enough. The delivery team were brilliant, friendly and knowledgeable throughout.
Verified Customer
Bought a hot tub from Jeff a few years ago and it’s been brilliant ever since. They always provide great aftercare and answer any questions I have. I’d recommend them to all my family and friends.
Verified Customer
Clarice at Newbury helped us choose the right hot tub. She was professional, friendly and answered every question we needed. We’d definitely recommend Hot Tub Stores UK to anyone looking to buy.
Verified Customer
Nibh scelerisque morbi euismod dis. Consequat faucibus sed massa tincidunt ac id. Hendrerit lectus arcu vel et nisi. Ipsum viverra curabitur convallis a ac dictum viverra sollicitudin. Ullamcorper semper iaculis.
Mel Maggs
Nibh scelerisque morbi euismod dis. Consequat faucibus sed massa tincidunt ac id. Hendrerit lectus arcu vel et nisi. Ipsum viverra curabitur convallis a ac dictum viverra sollicitudin. Ullamcorper semper iaculis.
Louise Stone
What a fantastic experience finding our very first hot tub. Jeff went above and beyond to find the right tub for us and even delivered it in time for my birthday. Couldn’t be happier.”
Verified Customer
FAQs
Hot tub water care can seem confusing at first, but with the right products and guidance it quickly becomes simple. Our team is always on hand to help you maintain clear, safe water.
Find out moreWe recommend a quick check before each use or at least once a week if you use your spa regularly. It’s a simple step that keeps your water safe, clear, and comfortable for you and your family.
Using the right spa chemicals keeps your water fresh, clean, and safe. It protects your hot tub, prevents irritation, and ensures every soak is relaxing and worry-free.
If your water isn’t balanced, it can cause cloudiness or mild irritation. Regular checks are easy and make sure your hot tub is always inviting, comfortable, and ready for a perfect spa experience.
We offer everything from chlorine granules to pH balancers and shock treatments. If you’re unsure which to use, our team is on hand to advise and help keep your spa water perfect.
Not at all. With simple tools like our 3 Way Test Strips and a little regular attention, maintaining your hot tub is straightforward. Our team is always happy to guide you so your spa stays safe, clear, and enjoyable.
