15
WATER CHEMISTRY
It may be necessary to replace the hot tub’s water every 3 to 6 months. The frequency depends on a number of variables
including the frequency of use, number of users, attention paid to water quality maintenance, etc. You will know it is time
for a change when you cannot control studding and/or you can no longer get the water to feel or sparkle as it usually does,
even though the key water balance measurements are all within the proper parameters.
Always keep an adequate supply of chemicals on hand for your hot tub. You should familiarize yourself with the necessary
types and amounts of chemicals to maintain your water at clean and healthy levels. Your dealer stocks the necessary chemi-
cals and is a good source of information on chemicals, procedures, and testing conditions in your area.
NOTE: The importance of the chemical balance in the hot tub cannot be over-emphasized.
Spa water chemistry (or water balance) affects the safety of your equipment as well as the appearance of your spa water.
Water balance has five factors: pH, total alkalinity, calcium hardness, temperature and total dissolved solids. The pH level is
the most critical but total alkalinity and calcium hardness must also be monitored closely. Low calcium hardness can lead
to corrosion of equipment, while high calcium hardness can lead to scaling, cloudy water and staining. Water temperature
should never exceed 40°C (104°F), and total dissolved solids should be kept below 1,500 PPM.
Algaecides and sanitizing chemicals are either alkaline or acid. Sodium and calcium hyprochlorites are alkaline. Chlorine
gas and practically all other dry chlorine spa products are acid. There is on the market a number of bromine sanitizers.
Bromines are usually preferred since they don’t give off a strong chlorine odour.
SEE YOUR SPA WATER EXPERT FOR CORRECT BALANCE OF CHEMICALS FOR YOUR SPA AND FOR ADDITIONAL INFORMATION.
CARE
Check and adjust water conditions. You must maintain proper chemical balance to ensure safe sanitary conditions and to
prevent your spa from becoming a breeding place for bacteria.
1.
It is recommended that the spa be drained regularly depending on its size, location and the frequency of use.
2.
Clean filter and cartridge periodically.
3.
Keep the spa covered when not in use to reduce heat loss and to keep leaves, dirt, and other foreign materials from
settling in the water.
Summary of Contents for spa-O
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