chemistry is as critical during the off-season months as it is
in season. Water may become aggressive because of rain, snow,
and fill water as with the regular use of acid to control pH.
Adjust your pH and Carbonate Alkalinity frequently; monitor
calcium hardness and cyanuric acid monthly.
DAILY WATER CHEMISTRY AFTER 28 DAYS
water chemistry using the Langelier Saturation Index (LSI)
maintained between 0.0 and + 0.3.
Chlorine = 1 to 3 ppm1
?pH = 7.2 to 7.6
?Calcium hardness = 200 to
?Salt Level = 2500 to 3500
Total Chlorine = 1 to 3 ppm1
?Carbonate Alkalinity = 80
to 120 ppm1
?Cyanuric acid = 30 to 50
(Salt chlorination ONLY)
Sequestering Agent as per
?TDS = 300 to 1800 ppm1
Saturation Index (LSI) must be maintained between 0.0 and +0.3
for day-to-day maintenance after the initial start up
procedure has been completed. This will help to reduce the
likelihood of problems with the pool surface. Disregarding
these LSI parameters promotes leaching, etching and
discoloration on the negative (-) side and scaling and
discoloration on the positive (+) side.
LANGELIER SATURATION INDEX (LSI) =
TDS 1 ?1000 ppm1 -12.1,
TDS 1000 - 2000 ppm1