Bather Load; Pure Cure™ Water Sanitizer; Ozonator - Cal Spas Patio Owner's Manual

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Bather Load

"Bather Load" is the term used to describe the number of people using a spa, combined with the length of usage, and the
frequency of usage. All these factors have a great effect on the spa water. The higher the bather load, the more chemicals
need to be added and a longer filtration time will be needed.
Recommendations are designed for spas with average bather load (3 to 4 people, 15 minutes of usage, three times a week
at 100 degrees) If your bather load exceeds these guidelines, and you experience water quality problems, increase the
amount of filtration first, (go to the next higher filtration number) then if water quality is still not adequate, consult the
advice of your Cal Spas dealer for additional chemical or system recommendations. Be sure to give them your bather load
information.
Pure Cure™ Water Sanitizer
The Pure Cure™ water sanitizer is an optional water purification system installed at the factory. It eradicates germs in the water
that are resistant to chlorine-based chemicals using high intensity UV light. Although the water sanitizer works automatically
with your spa, you will still need to test for chlorine or bromine and occasionally replenish it to return the sanitizer level to
the baseline. See page 25.
For spas without a circulation pump, pump 1 will run at low speed and the water sanitizer will run during filtration.
For spas with a circulation pump, the water sanitizer will run with the circulation pump.
The spa's control system is factory-programmed with one filter cycle that will run in the evening when energy rates are often
lower. The time and duration of the filter cycle can be set according to your needs. In addition, a second filter cycle can be
enabled. Filtration time may need to be increased with heavy bather load.
See instructions for setting filtration cycles on page 14.
The water sanitizer is virtually maintenance-free. Once a year the UV light needs to be replaced. See page 40 for instructions.
However, the water sanitizer is not a user-serviceable item and maintenance must be performed by a spa
technician. Have your service technician consult the manufacturer's instruction and service manual.

Ozonator

The ozone generator releases ozone into the spa water. You will still need to test for chlorine or bromine and occasionally
replenish it to return the sanitizer level to the baseline. See page 25.
For spas without a circulation pump, pump 1 will run at low speed and the ozonator will run during filtration. You will need
to increase your filtration to a minimum of six hours per day.
For spas with a circulation pump, the ozonator will run with the circulation pump.
The spa's control system is factory-programmed with one filter cycle that will run in the evening when energy rates are often
lower. The time and duration of the filter cycle can be set according to your needs. In addition, a second filter cycle can be
enabled. Filtration time may need to be increased with heavy bather load.
See instructions for setting filtration cycles on page 14.
Always make sure water diverter valves are turned all the way to the left or right and never left in the center position during
filtration cycles. When the diverter valve is in the center position, there is not enough suction from the pump in order to
inject ozone into the spa. The ozonator will generate ozone, but it will not be injected into the water.
2017 Portable Spa
LTR20171000, Rev. C
www.calspas.com