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GLOSSARY OF SPA TERMINOLOGY
18. MAIN THERAPY PUMP
This produces water flow through the main jets in the spa. The first pump may be operated
on two speeds (varies by model). Low speed (if applicable) will produce efficient water circu-
lation during filtration, heating of the spa water, and gentle jet action. High speed provides
maximum jet action. The main pump is controlled by the “Jets” or “Jets I” button on the
Topside Control Panel.
19. SECONDARY THERAPY PUMP
(if equipped)
This produces water flow through 1 to 2 groups or seats of jets in the spa. The second pump
operates similar to the main pump and is controlled by the “Jets II” or “Aux” button on the
Topside Control Panel.
20. THIRD THERAPY PUMP
(if equipped)
This produces water flow through 1 to 2 groups or seats of jets in the spa. This is controlled
by the Jets III button on the Topside Control Panel.
21. CIRCULATION PUMP
(if equipped)
This produces water flow through the heater in the spa and provides the water flow
necessary to actuate the ozone injector. This energy efficient pump typically runs 24 hours
for efficient filtration and heating.
22. PUMP UNION
These are used to help relieve possible pump air locks or for service personnel to easily service
the pumps.
23. HEATER UNION
These are used by service personnel to easily service the heater.
Summary of Contents for legacy whirlpool
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