User Guide

3
Keep it Balanced
Balanced water allows your sanitizers to work more efficiently to eliminate bacteria
and germs. Balanced water will help water sparkle, protect spa equipment, reduce
odors and reduce eye and skin irritation. The key water balance factors to test are
pH, total alkalinity, and calcium hardness.
Before filling your spa, you should know the properties of the water you are using
to fill your spa, also called “source water”. The very best way to test water is to
take a sample of your source water to your local SpaPure dealer. Your professional
dealer will test for a wide variety of factors. If any of these levels are outside their
ideal ranges, your dealer will be able to suggest any necessary adjustments.
pH
pH is the most important factor in water balance. On the pH scale, 7.0 is neutral,
however spa water should be between 7.2 and 7.6. Low pH levels will corrode
equipment and plumbing. High pH levels are likely to form damaging scale around
the pump and the heater, as well as on jets and surfaces, which can be unsightly
and uncomfortable. High pH can also make water hazy and cause skin and eye
irritation. If pH is below 7.2, apply pH Up and if pH is above 7.6, apply pH Down
according to the label instructions.
Total Alkalinity (TA)
Total alkalinity helps keep pH at ideal levels. Typically, when TA in water is low, pH
will bounce in and out of range. When total alkalinity is high, pH will be high or
difficult to adjust. Additionally, if alkalinity is high or low, water can experience the
same issues as if the pH was high or low. Proper TA in spas should be maintained
in the range of 80-120 ppm. If total alkalinity is low, add Alkalinity Increaser
according to label instructions.
Calcium Hardness (CH)
Calcium hardness refers to the amount of dissolved calcium in water. Proper
calcium hardness levels for a spa should be 200-400 ppm. Low CH can lead to
corrosion of equipment; CH that is too high may cause cloudy water and scaling.
Test your source water for calcium hardness levels during your initial fill of your
spa, then monthly between refills. If calcium hardness is low in your spa, add
Hardness Increaser according to the label instructions.