Pool Chemicals

SWIMMING POOL & SPA SHOCK

Calcium Hypochlorite is one of the most widely used shock chlorine chemicals used in swimming pools. Also known as chlorine shock, these shock chlorine granules provide a rapid source of chlorine for your swimming pool. These Calcium Hypochlorite chlorine shock granules contain about 70% available chlorine. Using calcium hypochlorite provides a simple and effective method for adding shock chlorine to your pool water.

Shock chlorine granules are designed to be used in conjunction with slow chlorine (sometimes called stabilised chlorine). Slow chlorine is used to provide the basic level of chlorine in your pool and the shock chlorine granules are used to shock dose (in other words to top up) the chlorine levels in the pool. In smaller pools it is possible to use shock chlorine granules on their own without the use of slow chlorine.

How To Use Calcium Hypochlorite Shock Chlorine Granules

Chlorine Shock Treatment, for example to deal with an algae problem - add 15g of shock chlorine granules per cubic meter of pool water.

Regular maintenance when used with slow chlorine - add 5g of shock chlorine granules per cubic meter of pool water.

These dose rates are only suggestions. The chlorine levels in the pool should be monitored using an appropriate test method such as our 3 in 1 test strips. Shock chlorine should then be added in small doses until the required level is achieved. Always check the pH of the water after chlorine shock has been added using our 3 in 1 test strips. Allow 24 hours between adding chlorine shock and adding algaecide to your pool. These shock chlorine granules may form a dust cloud when poured. Ensure that the area is adequately ventilated when using and wear a dust mask. To prevent and damage to the pool liner, it is recommended that you pre-dissolve these shock chlorine granules in a bucket and then add the dissolved solution to the pool. Shock chlorine granules and water with a high concentration of shock chlorine dissolved in it will bleach clothes.

Regulatory Information

R8 Contact with combustible material may cause fire
R22 Harmful if swallowed
R31 Contact with acids liberates toxic gas
R34 Causes burns
R50 Very toxic to aquatic organisms

S1/2 Keep locked up and out of the reach of children
S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S36/37/39 Wear suitable protective clothing, gloves and eye/face protection
S45 In case of accident or if you feel unwell seek medical advice immediately (show the label where possible)
S60 This material and its container must be disposed of as hazardous waste
S61 Avoid release to the environment. Refer to special instructions/safety data sheet

(Calcium Hypochlorite), shock treatment for green swimming pools & cloudy spa water. Dose 70g per 10m³(2,500 gallons) to raise Chlorine levels by 5ppm.

CHL-1004

1KG SHOCK GRANULES
	x1+	£8.70 each
5kg SHOCK-IT GRANULES
	x1+	£35.00 each