3
Salt Level
Use the chart on page 4 to determine how much salt in Kg (or Pounds) need to be added to reach the
recommended levels. Use the equations below (measurements are in feet/gallons and meters/liters) if pool
size is unknown.
Gallons
Liters
(pool size in feet)
(pool size in meters)
Rectangular
Length x Width x
Length x Width x
Average Depth x 7.5
Average Depth x 1000
Round
Diameter x Diameter x
Diameter x Diameter x
Average Depth x 5.9
Average Depth x 785
Oval
Length x Width x
Length x Width x
Average Depth x 6.7
Average Depth x 893
The ideal salt level is between 2.7-3.4 g/l (2700-3400 ppm) with 3.2 g/l (3200 ppm) being optimal. If the
level is low, determine the number of liters (gallons) in the pool and add salt according to the chart on page
4. A low salt level will reduce the efficiency of the AquaRite
®
CUL Electrolytic Chlorine Generator and
result in low chlorine production. A high salt level can cause the AquaRite
®
CUL Electrolytic Chlorine
Generator to shutdown and may begin to give a salty taste to your pool (generally, the salt will begin to be
tasted at a level of about 3.5-4.0 g/l (3500-4000 ppm)). The salt in your pool/spa is constantly recycled and
the loss of salt throughout the swimming season should be small. This loss is due primarily to the addition
of water because of splashing, backwashing, or draining (because of rain). Salt is not lost due to
evaporation.
Type of Salt to Use
It is important to use only sodium chloride (NaCl) salt that is greater than 99% pure. This is common food
quality or water softener salt and is usually available at building supply stores in 18 – 36 Kg (40-80 lb.)
bags labeled "Coarse Solar Salt". It is also acceptable to use water conditioning salt pellets; however, it will
take longer for them to dissolve. Do not use rock salt, salt with yellow prussiate of soda, salt with anti-
caking additives, or iodized salt.
How to Add or Remove Salt
For new plaster pools, wait 10-14 days before adding salt to allow the plaster to cure. Turn the circulating
pump on and add salt directly into the pool. Brush the salt around to speed up the dissolving process--do
not allow salt to pile up on the bottom of the pool. Run the filter pump for 24 hours with the suction coming
from the main drain (use pool vac if there is no main drain) to allow the salt to evenly disperse throughout
the pool. The salt display may take 24 hours to respond to the change in salt concentration.
The only way to lower the salt concentration is to partially drain the pool and refill with fresh water.
Always check stabilizer (cyanuric acid) when checking salt. These levels will most likely decline together.
Use the chart on page 5 to determine how much stabilizer must be added to raise the level to 0.08 g/l
(80ppm).
