16
• The water should start circulating immediately. If the motor
works but you do not notice water circulation within the first
15 seconds, the pump may require priming due to trapped
air (referred to as an ‘air lock’). If the pumps have not self-
primed after 2 minutes, and water is not flowing from the
jets, DO NOT allow the pumps to continue to run. Turn
power off at the main house panel (or GFCI) and try releas-
ing the air by loosening the union on the discharge side of
the pump(s) while the motor is not running. Turn the power
back on. If the pumps do not prime after 15 seconds,
sometimes momentarily turning the pump(s) off and on will
help the system to prime (note: do not do this more than 5
times).
• Important: Under NO circumstances should the pump(s) be
allowed to operate without priming beyond 5 minutes, as
this may not only cause unwarrantable damage to the
pump, it may also cause the control system to go into an
overheat condition.
• Turn the hydrotherapy pump(s) onto high speed and re-
check for leaks. The control system will automatically return
the pump to low speed after 15 minutes.
• Adjust the hot tub heat control at the topside panel to the
desired water temperature.
• Adjust water balance (pH, TA, calcium hardness) to recom-
mended levels and add sanitizer once the water temperature
reaches 20°C (68°F).
See section HOT
TUB WATER BAL-
ANCE
• Keep insulated safety hard cover on the hot tub, and the
air controls closed during the entire heat up process.
HOSE BID
O– RING / GASKET AT
UNION CONNECTIONS
RELEASING AN AIR LOCK...
...THROUGH THE
PUMP UNION
Summary of Contents for Serenity Hot Tubs
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