Pool Chemical Kits

Purchasing the right pool chemical kits can help ensure that your water remains safe to swim in. Before investing in a kit, it’s important to understand what each product is used for. Learn what Algicides are, Chloramines sting, and Non-chlorine sanitizers do. You’ll also want to know how to use Mineral sanitizers, which protect chlorine from being burned off by the sun.

Pool Crab Pool Chlorine Tablets, 1kg Multifunctional 4-in1 Dispenser Tablets for Swimming Pool, Hot Tub, Spa, 50 x 20g Chlorinating Chemical Tabs (Sanitiser, Stabiliser, Algaecide and Clarifier)
Amazon.co.uk
£12.45
PRIMEPRIME
Pool Crab Pool Chlorine Tablets, 1kg Multifunctional 4-in1 Dispenser Tablets for Swimming Pool, Hot Tub, Spa, 50 x 20g Chlorinating Chemical Tabs (Sanitiser,...
7kg pH Minus - Bluewater Swimming Pool & Spa Chemicals - PoolShopUK
Amazon.co.uk
£18.95
7kg pH Minus - Bluewater Swimming Pool & Spa Chemicals - PoolShopUK
! 1kg stabilised Chlorine Granules for Hot Tubs, Inflatable & Above-Ground Pools – Pool Chemicals for Crystal Clear Water | Kills Bacteria, Prevents Algae & Clarifies
Amazon.co.uk
! 1kg stabilised Chlorine Granules for Hot Tubs, Inflatable & Above-Ground Pools – Pool Chemicals for Crystal Clear Water | Kills Bacteria, Prevents Algae &...
SUDS-ONLINE 500G Stabalised Chlorine Granules - Swimming Pool Chemicals & Spa
Amazon.co.uk
£9.95
PRIMEPRIME
SUDS-ONLINE 500G Stabalised Chlorine Granules - Swimming Pool Chemicals & Spa
-18%
Clearwater pH Plus Increaser - 1 kg Granules for Hot Tub, Spa & Swimming Pool Water Treatment, Boosts pH & Improves Water Balance
Amazon.co.uk
£8.99 £10.99
PRIMEPRIME
Clearwater pH Plus Increaser - 1 kg Granules for Hot Tub, Spa & Swimming Pool Water Treatment, Boosts pH & Improves Water Balance
Amazon price updated: January 11, 2026 3:07 pm

Chloramines sting your eyes

One of the worst side effects of chloramines is stinging your eyes. Chloramines can have a negative impact on the pH balance of your pool water. The human eye has a pH range of 7.4 to 7.6. Water with an irritable pH balance is not safe to swim in. If your eyes are inflamed by pool chemicals, you should consult a doctor.

Chloramines are produced from pee, poop, sweat, and dirt. Getting into the pool with diarrhea or vomiting will worsen the irritation. Besides, you must make frequent bathroom breaks to avoid it. Children, especially those with young bodies, should never use the pool as a restroom. You should also make sure that they change their swim diapers in the bathroom before entering the pool.

Clearwater Algaecide Algae Remover for Swimming Pool and Spa Hot Tub Water Treatment, Highly Effective Formula, 1 Litre
Amazon.co.uk
£9.98
PRIMEPRIME
Clearwater Algaecide Algae Remover for Swimming Pool and Spa Hot Tub Water Treatment, Highly Effective Formula, 1 Litre
Bluewater Chlorine Granules 5kg - Swimming Pool & Spa
Amazon.co.uk
£26.95
Bluewater Chlorine Granules 5kg - Swimming Pool & Spa
Dirtbusters Pro Pool Algaecide (5L) For Swimming Pools & Hot Tubs Concentrate, Powerful Algae Remover & Prevention Treatment For Clean Crystal Clear Water
Amazon.co.uk
£18.99
PRIMEPRIME
Dirtbusters Pro Pool Algaecide (5L) For Swimming Pools & Hot Tubs Concentrate, Powerful Algae Remover & Prevention Treatment For Clean Crystal Clear Water
-11%
Pool Chemical Starter Kit for Hot Tubs, Above Ground Pool, Paddling Pool Water Treatment (Includes Chlorine Granules, pH Minus, pH Plus, Foam Remover, Test Strips, Measuring Spoons)
Amazon.co.uk
£15.99 £17.97
Pool Chemical Starter Kit for Hot Tubs, Above Ground Pool, Paddling Pool Water Treatment (Includes Chlorine Granules, pH Minus, pH Plus, Foam Remover, Test...
JOVS Chlorine Granules 5kg : Stabilized Chemicals for Hot Tubs, Pools, and Spa's - Swimming Cleverness for Rapid Disinfecting and Cleaning, Spa Water Treatment.
Amazon.co.uk
£25.24
JOVS Chlorine Granules 5kg : Stabilized Chemicals for Hot Tubs, Pools, and Spa's - Swimming Cleverness for Rapid Disinfecting and Cleaning, Spa Water Treatment.
-20%
Clearwater 1 kg Multifunction Chlorine Tablets, 4-in-1 Dispenser Tablets (Sanitiser, Stabiliser, Algaecide and Clarifier) for Pools and Hot Tubs, 50 x 20 g, White
Amazon.co.uk
£15.99 £19.99
Clearwater 1 kg Multifunction Chlorine Tablets, 4-in-1 Dispenser Tablets (Sanitiser, Stabiliser, Algaecide and Clarifier) for Pools and Hot Tubs, 50 x 20 g,...
-40%
Clearwater Chlorine Granules for Hot Tub Spa and Swimming Pool Water Treatment for Rapid Disinfecting and Cleaning, Jerry Can, 5 kg
Amazon.co.uk
£24.99 £41.99
Clearwater Chlorine Granules for Hot Tub Spa and Swimming Pool Water Treatment for Rapid Disinfecting and Cleaning, Jerry Can, 5 kg
Bluewater pH Plus Increaser 5kg Swimming Pool Chemicals & Spa
Amazon.co.uk
£18.49
Bluewater pH Plus Increaser 5kg Swimming Pool Chemicals & Spa
-21%
Clearwater Hot Tub Chemical Starter Kit, Includes Chlorine Granules and Dip Test Strips
Amazon.co.uk
£20.83 £26.37
Clearwater Hot Tub Chemical Starter Kit, Includes Chlorine Granules and Dip Test Strips
Bluewater 5kg Shock Chlorine Granules Swimming Pool & Spa
Amazon.co.uk
£38.95
Bluewater 5kg Shock Chlorine Granules Swimming Pool & Spa
-27%
Clearwater Pool Chemical Starter Kit for Above Ground Pool and Paddling Pool Water Treatment (Includes Chlorine, pH Minus, pH Plus, Algaecide and Test Strips)
Amazon.co.uk
£21.84 £29.99
Clearwater Pool Chemical Starter Kit for Above Ground Pool and Paddling Pool Water Treatment (Includes Chlorine, pH Minus, pH Plus, Algaecide and Test Strips)
Bluewater 5kg Multifunctional Chlorine Tablets 200g Swimming Pool Chemicals by PoolShopUK
Amazon.co.uk
£44.95
Bluewater 5kg Multifunctional Chlorine Tablets 200g Swimming Pool Chemicals by PoolShopUK
Amazon price updated: January 11, 2026 3:07 pm

Mineral sanitizers keep chlorine from being burned off by UV rays

While UV rays can burn off chlorine, mineral sanitizers prevent them from being destroyed. They do this by breaking down contaminants by releasing ions. Typical mineral sanitizers are made of copper or silver. They disperse them into water via a feeder, floater, or skimmer. Ionizers can also be installed inline and dispense the ions. The ionizers are certified by the NSF 50 standard.

Two types of sanitizers are available: bromine and chlorine. While they are cousins, bromine has a slightly different personality. Bromine is not stable when exposed to the UV rays and will burn off if left unprotected. Mineral sanitizers can be purchased online or in store. They are a great option for sanitizing your swimming pool.

Non-chlorine sanitizers keep pH at the right level

While chlorine is the most commonly used sanitizer, non-chlorine products have a similar purpose. They keep pH levels at the correct level in the pool. Typically, you should have a pH level of 7.2 to 7.6, although it depends on the sanitizer used. Chlorine products are categorized as free chlorine, combined chlorine, or trichlor.

Chlorine is a natural sanitizer, but it can be destroyed by the sun’s ultraviolet rays. Chlorine decomposes into chloramines, a waste product that contributes to the odor of your pool. These waste products can irritate the eyes and dry out the skin. They are not healthy to breathe either.

Best pool chemical kits

The LaMotte 3368-NJ Pool Manager is a top-quality testing kit that offers numerous innovative features. This kit is easy-to-use and provides accurate readings. It uses LaMotte Visual Gradetest tablets to measure free chlorine, alkalinity, and acid demand. It also has a longer shelf-life than reagents, ensuring accurate results every time. The LaMotte 3368-NJ has a great price-to-performance ratio and a convenient polyethylene case.

A simple salt water test kit has a low error rate of around 200 ppm. A digital tester is more accurate but requires mixing of chemicals. It is better than a drop test kit, as it removes any doubt about chemical levels and salinity. A good kit should also include a chromate indicator and silver nitrate reagent, which are potentially dangerous. When using these tools, you should follow the instructions carefully to prevent accidental exposure.

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