Chemicals & Water Treatment

Pool Sanitising Chemicals & Water Treatment at Incredible Prices

Please call us on 0208 941 6618 or email us for more information, technical advice, or a competitive quote.

Pool chemicals and water treatment are some of the most important elements of maintaining a swimming pool. It is extremely important to keep your swimming pool safe to use, and this means killing micro-organisms that may be harmful to your health. It is also desirable to keep your pool water looking clear and fresh and remove algae which can turn the water an unsightly green colour.

There are various methods of sanitising your swimming pool:

Chemicals – The most popular chemical for pool sanitisation is chlorine, which is easily available and inexpensive. Alternatives are available, such as bromine. We also supply algaecides for reducing the level of algae in your swimming pool, and flocculants and clarifiers to help keep your pool water fresh and clear.

Mineral & Chlorine Purifiers – These sanitising systems utilise automatically released minerals and chlorine to safely neutralise micro-organisms and provide cleaner, clearer, and softer water.

Salt Chlorinators – For saltwater pools, these salt chlorinators generate chlorine from dissolved salt in the water, which effectively neutralises micro-organisms.

Ionic Purifiers – Ionic purifiers create and release copper and metal ions into the pool water, which attack and neutralise micro-organisms. Due to the presence of copper, they are also effective algaecides.

Ozone & UV Purifiers – Ozone & UV purifiers utilise self-produced ozone and Ultra Violet (UV) light to attack and neutralise micro-organisms. Ozone purification can help provide a clearer pool by dissolving grease and oils. Both methods are ideal for neutralising micro-organisms that are resistant to chemicals.

Chemical Concentration

You should always use the correct quantities of chemicals for your pool size. To work out the water capacity of your swimming pool (in gallons), you can use the following formulas:

Imperial (gallons):

• For square or rectangular pools – length (ft) x width (ft) x average depth (ft) x 6.25 = volume (gallons)
• For circular pools – 3.1428 x radius² (ft) x average depth (ft) x 6.25 = volume (gallons)

Pool pH

All pools should have a pH between 7.2 and 7.6. A low pH is acidic and corrosive. This will damage pool parts and sting bather’s eyes. A high pH is alkaline and stops any chlorine present from working as well as being scale forming.

Test the pH of your pool using Phenol Red in a test kit. If your pool pH is not within the required limits (either too high or too low), you can add a pH minus or a pH plus to bring levels within the required limits.

• pH minus – A pH above 7.6 (‘high’) is lowered by adding pH minus (sodium bisulphate or pool acid)
• pH plus – A pH below 7.2 (‘low’) is raised by adding pH plus (sodium carbonate or pool alkali)