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KEEP THIS MANUAL
• The calcium carbonate has a tendency to plate out on the sand in the pool filter,
effectively turning it into cement. So your sand filter becomes a cement filter and
loses its ability to trap dirt from the pool water.
• As the pH rises, the power of the chlorine to act on foreign particles is lost. At a
pH of 8.0 the pool can only use 20% of the chlorine you put in. So 80% of it goes
to waste and you would need 5 times the amount of chlorine to provide the
disinfection you need.
• Eyes and nose burn and skin becomes dry and itchy.
By neglecting to test and correct the pH of swimming pool water, we not only
cause it to become unsightly, but we also cause ourselves physical discomfort.
Chlorination and Sanitation
Chlorine needs to be present in the pool at all times. It reacts instantly with waste
products to sanitize and protect your pool water. The amount of chlorine used by
your pool is referred to as "Chlorine Demand".
All chlorine types disassociate in water into hypochlorous acid [HOCl] and
hydrochloric acid [HCl]. Hypochlorous acid is the active sanitizer. It is also referred
to as “Free Chlorine”. Bromine chemistry is similar except hypobromous acid [HOBr]
is the active sanitizer.
For pool or spa owners utilizing chlorine as their sanitizing agent take note of
the following quote from the American Chemistry Council: “
Chlorine is regularly
fed into the pool water and should be tested daily, at a minimum, for proper disinfec-
tion. Routine chlorination kills harmful microorganisms that can cause health-related
problems, such as gastroenteritis, Legionnaires disease, ear infections and athlete's foot.
Learning how to properly test your water will allow you to identify the chlorine residual
and demand in pool water. More frequent testing is needed if there is heavy bather use.
”
ePOOL provides you with CONTINUOUS monitoring of your chlorine levels which
results in a safe swimming environment.
CHLORINE - Basic Rules of Thumb (Courtesy of the American Chemistry Council)
• Always read and follow the manufacturer’s instructions.
• Store chemicals in a cool, dry and shaded place.
• Never mix different types of chlorine - add each to the pool separately.
• Never mix chemicals together - add each to the pool separately.
• Avoid breathing fumes or vapors.
• Don't buy more pool chemicals than you’ll use in a season - they lose
effectiveness over time.
• Make sure pool chemicals are inaccessible to children.
Other properties such as Total Alkalinity (TA), Total Dissolved Solids (TDS), Calcium
Hardness (CH), and Cyanuric Acid (CA), are important, but need to be checked on
a much less frequent basis - typically only twice per year. We recommend taking
a sample of your pool or spa water to your local pool supply store two times a year
for a complete chemical analysis.
