Interline Shock 55 Granulaat pool cleaner The use of chlorine shock is ideal if you want to quickly bring the water to the right level. Because it is destabilized chlorine it works quickly and effectively. The pH value should be between 7.2 and 7.6 for a good functioning, so always test the water beforehand. Mix the right amount of chlorine granulate in a bucket with swimming pool water or hot water. Then spread the mixed solution in the pool. Specifications: Colour: white Gender: unisex Material: plastic Dimensions: 26 x 26 x 25 cm Contents: 5 kg pH value: 7.2 - 7.6