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Over time, dirt
accumulates in the spaces between the sand particles causing the
pressure in the vessel to rise as water finds it harder to pass
through. This signals you to "backwash" the filter. Simply reverse the
water flow and "knock out" the dirt. What could be simpler?
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But all sand filters
are not created equal. For optimum filtration all the water must flow
through the same amount of sand at the proper rate. That's why all
Pentair sand filters feature a special internal design that keeps the
sand bed level, ensures even water flow, and results in the most
efficient filtration possible. That's why more than 2,000,000 Pentair
filters have been installed worldwide. |
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