¿How to use?
SERTECH GR product should be dosed manually while the pool-filter is switched-off. Introduce 500g of product inside the pre-filter of the pump and switch-on the filtering unit until the product completely dissoved gets the filter. Then, stop the filtering unit and let the product act for approximately 1 hour.
After this period of time, carry out an intense rinse of the sand-filter.
Once rinsed, the filtering media of the pool-filter will be in perfect conditions to efficiently work at its maximum filtering capacity.
The data sheet