Pool Systems Introduction: Difference between revisions
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When a drain return modulating valve is not present, it is important that the drain return is restricted (the valve is partially closed). Otherwise, flow from the drain will potentially prevent adequate flow from the gutter return. In an ideal case, the surge tank should always have a modulating valve on the drain return. | When a drain return modulating valve is not present, it is important that the drain return is restricted (the valve is partially closed). Otherwise, flow from the drain will potentially prevent adequate flow from the gutter return. In an ideal case, the surge tank should always have a modulating valve on the drain return. | ||
== Filters == | |||
Four Pentair Triton II Commercial silica sand-filled filter tanks operate in parallel to capture particles in the water that passes through. As particles accumulate, flow is restricted. This is indicated by an increase in pressure. | |||
=== Maintenance === | |||
Periodic back-washing is required when filter tank pressure exceeds a threshold. | |||
The filter sand should be replaced every 5-10 years. In a marcite pool, the filter sand should be replaced following the cure period of a new marcite coating (as the process releases a large number of particles, clogging the sand filters). | |||
== Boiler == | == Boiler == | ||