Hot Tubs
Chemicals & Filters
Services We Offer
- Description
- Specification
Total Alkalinity (TA) helps stabilise your spa water and protect your hot tub. After refilling with fresh water, alkalinity can drop within just a few days—leading to unstable pH levels, potential damage to components, and an uncomfortable bathing experience.
Keeping your TA balanced is essential for smooth operation and long-term reliability.
Ideal range: 100–140 ppm (parts per million)
Regular testing keeps your water balanced and your hot tub running smoothly. Check alkalinity at least twice a week—more often if you’re in a soft water area.
How to use:
- Pre-dissolve the required amount of TA Plus in a clean plastic bucket filled with warm water. Stir the solution until the granules are fully dissolved.
- Ensure that your hot tub circulation pump is turned on before slowly pouring the solution directly onto your spa water surface.
- Continue to run the circulation pump for at least 15 minutes.
- Re-test the water and repeat the dosage until a reading of between 100ppm and 140ppm is achieved.
- Allow a further 15 minutes before using the hot tub.
We supply a number of chemicals, filters and other accessories such as steps and cover lifters. These can either be purchased by calling in to the showroom, visiting the website or over the phone.
If we don’t have a particular item in stock that you have ordered, we will do our best to find out when the earliest possible date would be for us to receive it and get back to you as quickly as possible.
If you order your accessories via the website or over the phone, we will aim to send them out the same day so you receive them as soon as possible.
Pure Spa TA Plus Alkalinity Increaser Granules
£9.99
Frequently Asked Questions
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Hot tub chemicals are essential for maintaining water quality, balancing pH levels, and sanitizing the water to ensure it's safe and comfortable for use.
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The core chemicals include chlorine or bromine for sanitization, pH increaser or decreaser, alkalinity increaser, and calcium hardness increaser.
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Some swimming pool chemicals may be compatible, but it's recommended to use chemicals specifically designed for hot tubs, as they are formulated for the smaller water volume and higher temperatures.
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You should test and adjust chemical levels at least 2-3 times a week, more frequently if the hot tub is being used evry day.
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The ideal pH level for a hot tub is between 7.2 and 7.8. Maintaining the correct pH level is crucial for water balance, user comfort, and equipment protection.
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You can use either chlorine or bromine as your primary sanitizer, but it's not recommended to switch back and forth frequently due to differences in how they work.
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Shocking your hot tub means adding a high-dose of sanitiser to eliminate contaminants and debris. Shock your hot tub every 1-2 weeks or when water appears cloudy or has a strong chlorine smell.
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Yes, there are alternative sanitization methods such as ozone generators, mineral cartridges, and saltwater systems. These can reduce the need for traditional chemicals but are not entirely chemical-free.
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Always follow the manufacturer's guidelines and instructions, wear protective gloves and goggles, store chemicals in a cool, dry place away from children and pets, and avoid mixing chemicals.
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Baking soda can be used to raise alkalinity, but it's essential to use chemicals designed for hot tubs for accurate and consistent adjustments. Household items may not provide precise results and can lead to imbalances and hot tub damage.