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Adding Salt
Type of Salt to Add
It is important to use Sodium Chloride (NaCl) salt that is greater than 99% pure. Acceptable
types of salt include granular food grade, pool salt, water softener pellets, or solar salt flakes.
Pool salt or food grade granular salt will dissolve faster than pellets or flakes. Rock salt and
Granular Salt with Iodine or Rust Preventatives should not be used, as these mixtures contain
high levels of impurities that may cause staining. Granular salts containing anti-caking additives
such as YPS (Yellow Prussiate of Soda) or sodium ferrocyanide are not recommended as they
can cause a localized tint to the water or yellow staining of the pool/spa finish.
Amount of Salt Required
Test the water for current salt content first!
The ideal salt range is 3,500 – 4,500 ppm (mg/L). The minimum salt level is 2,300 ppm (mg/L).
Salt levels above 6,000 ppm (mg/L) are not normally recommended, as corrosion issues may
result. Salt levels below 3,500 ppm (mg/L) will reduce the efficiency of the ChlorSync
®
and will
result in low chlorine production. Extremely low salt levels below 2,300 ppm (mg/L) will activate
the low salt safety cut off and will halt chlorine production until salt is replenished to proper
levels.
For information on amount of salt to be added relative to the volume of water to be treated vs.
existing salt level, refer to the salt addition information in the section below.
How to Add Salt to Pool
CAUTION - Failure to heed the following may result in equipment damage.
l For newly plastered pools, do not operate the ChlorSync
®
SCG for 30 days after construction is
completed. You must allow the plaster to cure, otherwise the salt could damage the pool finish.
l Do not allow salt to pile up in one location without brushing, as staining may occur.
The circulation pump should be run continuously until the salt has been fully dissolved. Add salt
directly to pool (or spa, if a spa-only installation) and over the main drain (if main drain is
present). If there is no main drain, a vacuum head may be used to encourage salt circulation.
Distributing the salt by brushing is also helpful; brush the salt toward the main drain (if one is
present). Set pump operation to normal run time after salt has fully dissolved into water.
If the salt level becomes undesirably high, the only way to remove excess salt is to partially drain
the pool/spa and refill with fresh water.
Salt Addition Information
The salt in the pool is constantly recycled during normal operation. Loss of salt during a
swimming season should be minimal. Filter back washing, draining due to rain water overflow,
splashing, bathing suit drag out, and leaks are typical ways salt is lost. Salt does not leave the
pool when water evaporates.
1.
Determine pool/spa volume in Gallons or Liters.
2.
Determine the current salt level in the pool. Some pools may already have a salt residual, so always
test water before adding salt. (This can be obtained from the control display or by testing water.)
3.
Add salt as per the following formula:
l New pool: 50 lbs (22.7 kg) of salt per 2,000 gallons (7,571 Liters) will raise the salt level by
3,000 ppm (mg/L).
l Example: For a 10,000 gallon (37,854 Liter) pool with a salt level of 500 ppm (mg/L), you
would need to add 250 lbs. (113.4 kg) of salt to bring the level up to 3,500 ppm (mg/L).
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