Maintenance
Balancing pH
For good hygiene and equipment longevity, maintain the pH of your hot tub water according to
the instructions provided. pH is the measure to determine if the hot tub water is too acidic (low
pH) or too alkaline (high pH). The ideal range for hot tub water is 7.4 to 7.6 pH. For excessive
acidity (below 7.2 pH) add soda ash or sodium bicarbonate to the hot tub water. For excessive
alkalinity (above 7.5 pH) add dry acid to the spa water.
CAUTION: Refer to the hot tub chemical manufacturer’s instructions for the initial amount
of chemicals to add for the gallonage of your hot tub. Low pH can cause equipment
damage, as acidic water will dissolve metals, while high pH can cause scale or calcium
deposits to build up in the system or on the shell. After adding chemicals, run the filter
system for at least 30 minutes before testing water quality again for accurate readings.
Balancing Total Alkalinity
Total alkalinity is the measure of base materials in the water. The recommeded range for total
alkalinity is between 80 ppm and 150 ppm. If the chemistry of the water is not within this
range, you will have difficulty adjusting your pH level, which will affect your adjustments for
the proper amount of free available chlorine. If the alkalinity of your hot tub water is high, it is
advisable to drain the water from the hot tub, refill and begin the balancing process over
again. Purge and sanitize your hot tub (according to the instructions in the Equipment Set-Up
section of the Installation Instructions) and clean the hot tub surfaces thoroughly before refilling
with fresh water. Then reestablish water chemistry. If the hot tub is used heavily, change the
water at least every month.
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Summary of Contents for Platinum 2001
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