SPC PRO Descaler for Filters is an easy-to-apply product suitable for cleaning pool filters, made of stainless steel or polyester whose filtering load is flint or sand. Eliminates incrustations and degreases the filter without generating foam.
With the filter stopped and uncovered, drain all the water inside the filter through the bottom valve. Close the drain and, through the filter mouth, introduce 2 Lt of water followed by 2 Lt of SPC PRO Filter descaling agent for every 10 kg of sand or flint approximately. The added dissolution level must cover the sand level, at least between 20 and 30 cm above. Allow the product to react with the calcium oxide and dirt present in the filter. When the effervescence (bubbles) has ended, after a reasonable period of time (approximately 4 to 8 hours), close the filter cover, and placing the key in the cleaning position, run the water inside to wash it.
Nitric acid, phosphoric acid in solution
