Quote:
Originally Posted by CFrance
How is that better than replacing the filters? How do you know the back flushing removes everything?
I like having totally new filters put in every 26000 gallons.
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Fact no type of carbon can washed clean, contaminants are trapped in millions of microscopic pores. The networks of pores in activated carbons are channels created within a rigid skeleton of disordered layers of carbon atoms, stacked unevenly, creating a highly porous structure of nooks, crannies, cracks and crevices between the carbon layers.
The back washing only washes off surface sediment.
You may think of trying to clean a filthy sponge with water, not happening.
General rule is max of 18 months in a filter system, but actual number of gallons is a more accurate method.