Used with a ‘shock dose’ treatment of your choice Blue Crystal provides an excellent alternative to chlorine. Chlorine has a different role in this situation compared to a pool treated only with chlorine.

In such pools the chlorine must be present and active at all times, where as in Blue Crystal pools the two treatments work together so that the chlorine is completely spent and no longer present or active allowing you to swim chlorine free, while still being protected by Blue Crystal.

How much to use

Swimming Pools – Blue Crystal is applied at a rate of 1 litre per 20,000 litres of pool water. A fast acting chlorine compound can be also used in a Blue Crystal pool. A typical ‘shock dose’ is: granular chlorine at the rate of 200gms/10,000 litres, or liquid chlorine at 1 litre/10,000 litres of pool water.

Add Blue Crystal near the pool inlet. Preferably while the pump is running for even distribution.

Spa pools – Blue Crystal is applied at a rate of 100mls per 1000 litres of water. The typical spa pool contains between 1000 to 1200 litres. It must be added to the pool while the pump is running.

Pool Maintenance

Once a month, the pool should be checked, the water tested, PH monitored and shock dose of chlorine added. Further additions of Blue Crystal may be required. General pool appearance will also indicate the need for a further addition of Blue Crystal.

Balanced water is the essence of good chemical control and improper balance is a common cause of many pool problems.

Make sure the pH of the water is between 7.2 - 7.8, the Total Alkalinity is 100 - 140mg/l.

Bring us in a sample of your pool water and we will test it FREE for you, and advise you what is required.

Available in 1 litre or 5 litre packs.

Download printable Information Sheet

Blue Crystal Poolcare Information Sheet

Blue Crystal Poolcare Spa Information Sheet