There are many differences between a pool and a hot tub and these contrasts call for a different and more strategic plan for care. Listed below are some of the major reasons why hot tubs have unique water chemistry requirements and why it is crucial for service technicians to keep these requirements in mind.

UNDERSTAND THE WATER
There are a few basics to consider when caring for a hot tub. First, know what type of source water will be used to fill the hot tub. Some areas have soft water and some have hard water, while some use well water and others use treated water from a municipality or city.

Soft water - is defined as water having very little mineral content which will act aggressively on the hot tub's equipment. If untreated, this can cause damage to the pump, filter or heater. To prevent damage, calcium chloride should be added ot the water. Calcium hardness should be maintained between 100-200ppm.
Hard water - this type of water contains a lot of minerals such as calicum and magnesium and will require special attention when balancing to account for the excess minerals.

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