Owning a hot tub or swim spa is a relaxing experience, but keeping the water safe and balanced requires the right chemical care. Our spa starter kit simplifies this process by providing three essential treatments in one convenient package. Alongside this, we do recommend having some three way test strips, so you’re aware when pH levels, as well as test chlorine and total alkalinity.

pH minus lowers high pH levels, helping prevent cloudy water, scale formation, and reduced sanitiser effectiveness.

pH plus raises low pH levels, protecting metal components and preventing skin and eye irritation.

Chlorine granules sanitise water efficiently, controlling bacteria, algae, and organic contaminants.

Using these three products together ensures your spa water stays within the ideal pH range of 7.2-7.6, supports effective sanitiser performance, and keeps water fresh, clear, and safe for your family or guests.

At Hot Tub Stores UK, we recommend regular testing with 3 Way Test Strips to monitor pH, free chlorine, and alkalinity. Clear water dramatically improves the spa experience, prevents equipment issues, and keeps your investment protected. Who wants to have friends or family members over with a cloudy hot tub!

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Spa starter kit includes pH minus, pH plus, and chlorine granules
Covers essential spa water maintenance needs
Helps maintain balanced pH and sanitizer levels
Supports clear, safe, and comfortable water
Ideal for new hot tub and swim spa owners

Nationwide delivery and professional installation service

Our certified engineers deliver and install hot tubs safely across the UK, including full electrical connections.

What's included

pH minus

What it is: A solution designed to safely lower high pH levels in spa or pool water.

Benefits: Maintains comfortable water for your skin, prevents scale formation, and ensures sanitiser effectiveness.

How to use: Test water regularly, add the recommended amount per 1,000 L of water, pre-dissolve in a clean plastic bucket, and add while the circulation system runs. Repeat until pH reaches 7.4.

pH plus

What it is: A solution that raises low pH levels safely in hot tubs and swim spas.

Benefits: Protects metal components, prevents irritation to skin and eyes, and ensures chlorine or bromine sanitiser works effectively.

How to use: Test water using 3 Way Test Strips. Add the recommended amount per 1,000 L of water, pre-dissolve if necessary, and pour slowly above the return inlet with circulation running. Repeat until pH is within 7.2-7.6.

Chlorine granules

What it is: Fast-dissolving stabilised chlorine granules that sanitise spa water effectively.

Benefits: Controls bacteria, algae, and organic debris, helping maintain clear and hygienic water. Essential for safe, comfortable hot tub use.

How to use: Pre-dissolve granules in a clean plastic bucket of water before adding to your spa while the circulation system runs. Use regularly to maintain recommended chlorine levels (2–3 ppm).

Why these three work together

The combination of pH minus, pH plus, and chlorine granules covers all essential aspects of spa water maintenance. pH adjusters keep your water balanced and comfortable, while chlorine ensures sanitation. Together, they provide complete water care for new spa owners, making your hot tub or swim spa safe, enjoyable, and ready to use whenever you want to relax.

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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...

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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...

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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...

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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...

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FAQs

Maintaining spa water may seem daunting at first, but with the right products and guidance, it’s simple and stress-free.

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