How To Shock A Hot Tub With Chlorine Granules. Remove the hot tub cover so oxygen can get to the water. Clean your hot tub, wash or replace your filter cartridges, then refill your spa with fresh water.
Ensure your ph is correct. The spa shock treatment breaks down organic contaminants to keep the water clear and clean. If you are using chlorine granules then you must wait until the chlorine level has returned to 5 ppm which may take 24 hours.
Favoured and recommended by many spa and hot tub suppliers, as it is kinder on the skin particularly if you have children, it is also less volatile at high temperatures.
How should i shock my hot tub? Here is an easy step by step: To be accurate you will need to know the volume of water in your hot tub. But bromine sanitizer holds up better in hot water & together gives you great water quality.