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Swimming Pool Chlorine & Sanitisers

Swimming Pool Chlorine & Sanitisers are the most commonly used chemical to achieve safe and clean swimming pool water.

It must be present in the ‘free’ form to kill bacteria and oxidise organic matter introduced by bathers.

Provided the water is balanced, free chlorine levels of between 1 and 3mg/l (ppm) is sufficient.

A well-managed chlorine treated pool will have no odour and levels of combined (spent) chlorine of less than 0.5mg/l.

Combined chlorine is created as a result of a reaction between free chlorine and organic matter such as bather wastes.

The latter is mostly produced when the water is not being treated adequately and gives rise to the ‘chlorine’ odour.

Our chemicals have made it easy for you to maintain your sanitiser level by giving you an extensive choice of products to suit your swimming pool situation.

Bromine is similar to chlorine in its effectiveness as a sanitiser but there are some important differences:

  • Pools sanitised with bromine do not require the addition of chlorine stabiliser.
  • Bromine should be dosed into the pool via a chemical feeder (brominator)
  • As it takes 2.2mg/l of bromine to equal 1mg/l free chlorine, bromine levels need to be kept between 3 and 5mg/l.
  • Bromine retains better levels of efficiency over a wider pH band than chlorine.
HTH GRANUFAST Stabilised Chlorine

HTH GRANUFAST Stabilised Chlorine

£50.00 Out of StockRead more



£50.15 In Stock
HTH Mini-Easyclic


£18.95 In Stock

HTH Shock Granules 4KG

Original price was: £101.00.Current price is: £49.99. In Stock
Pennosan Natural Pool Clarifier

Pennosan Natural Pool Clarifier 1l

£15.95 In Stock
Pennosan Vital Gel

Pennosan Vital Gel Natural Clarifier

£9.25 In Stock
Sodium Hypochlorite 14/15% - 1oLitres

Sodium Hypochlorite 14/15% – 10LITRES

£21.25 In Stock
Stabilised Chlorine Granules

Stabilised Chlorine Granules

from £7.22 In Stock

Mini Multi-functional Chlorine Tablets (20g)

Mini Multi-functional Chlorine Tablets (20g)

from £10.20 In Stock

Kleen Pool Ultimate Paddlecare Kit.

Kleen Pool Ultimate Paddlecare Kit

£15.00 In Stock

Mini Chlorine Tablets

from £26.35 In Stock

Hot Tub Bromine Tablets

Hot Tub Bromine Tablets

£27.20 In Stock
Blue Horizons Bromine tablets

Blue Horizons Bromine Tablets

£72.00 Out of StockRead more

Bromine Granules

Bromine Granules

£20.82 In Stock
AquaSPArkle Ezy-Float

AquaSPArkle Ezy-Float

£9.99 In Stock
HTH Advanced Non-Stabilised Chlorine Tablets

HTH Advanced Non-Stabilised Chlorine Tablets

£65.44 In Stock