and the filter …Not all Perlite is the SAME. Did you know…Generic Perlite can have HIGH FLOAT. FLOAT is the NON-FUNCTIONAL WASTE that doesn't coat the filter elements and will impact filter performance HIGH FLOAT causes BLEED-THROUGH and SHORT FILTER CYCLES Generic Perlite also tends to have HIGH PERMEABILITY and cannot filter down to 1 Micron.Perlite is made from soft alumino silicate rock that expands rapidly when heated as the water in its structure turns to steam. This expanded structure is then milled to the desired particle size distribution to make various grades of filter aid products.Oct 22
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