Pool Systems Introduction: Difference between revisions
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Matt Parnell (talk | contribs) (→Boiler) |
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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. | ||
=== High Water Level === | |||
Typically, high water in the surge tank is not of concern (unless it has nearly reached or exceeded the overflow point, of course). High water is usually the result of: | |||
* A nominal or slightly elevated pool water level in conjunction with a large amount of pool activity (spilling water into the gutters). | |||
* Limited flow into the filter system due to a plugged strainer basket or blockage elsewhere. | |||
* Excess water in the pool due to over-filling or a significant rain event (in this case, some water may be removed via backwash at the operator's discretion). | |||
All three scenarios, of course, assume the main pump is operating. The surge tank will rise to a relatively high level shortly after the main pump is disabled (it will match the pool level). | |||
== Main Pump == | == Main Pump == | ||