Water Chemistry Salt Level; Type Of Salt; How To Add Or Remove Salt - Hayward Pro Logic® Operation Manual

The pool's chemistry must be balanced BEFORE activating the Pro Logic's optional chlorinator function. NOTE:
If the pool does not have new water, add metal remover and non-copper based algaecide to the pool, per
manufacturer's instructions. This ensures a quick, troublefree transfer to the Pro Logic system.
Salt Level
(When using optional chlorinator function)
Use the chart on the following page to determine how much salt in pounds or (Kgs) should be added to reach the
recommended levels. Use the equations below (measurements are in feet/gallons and meters/liters) if pool size is
unknown.
Rectangular
Round
Oval
The operating salt level is between 2700-3400 PPM (parts per million) with 3200 PPM being optimal. Before
adding any salt, test the salt level. This is especially important for retrofit installation to older pools where chlorine
added to the pool over time has ended up as salt. If the level is low, determine the number of gallons in the pool and
add salt according to the chart below. A low salt level will reduce the efficiency of the sanitization and result in low
chlorine production. A high salt level can cause the Pro Logic to stop chlorinating. The salt in your pool/spa is
constantly recycled and the loss of salt throughout the swimming season should be minimal. 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 99.0% pure. This can be found at most
pool stores in 40-80 lb. bags labeled "for use in swimming pools". Alternatively, use common food quality or water
softener salt that is at least 99.0% pure. It is also acceptable to use water conditioning salt pellets, however, it will
take longer for them to dissolve. Do not use rock salt, or salt with more than 1% of yellow prussiate of soda, salt
with anti-caking additives, or iodized salt.
How to Add 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 vacuum 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.
Always check stabilizer (cyanuric acid), when checking salt. These levels will most likely decline together. Use the
chart on page 38 to determine how much stabilizer must be added to raise the level to 80 ppm.
Gallons
(pool size in feet)
Length x Width x
Average Depth x 7.5
Diameter x Diameter x
Average Depth x 5.9
Length x Width x
Average Depth x 6.7
36
Liters
(pool size in meters)
Length x Width x
Average Depth x 1000
Diameter x Diameter x
Average Depth x 785
Length x Width x
Average Depth x 893