compupool products CPSC Series - Adding Salt to Pool or Spa

Compu Pool CPSC Series Manual 7
5.6.3 Chlorine Residual. The amount of chlorine left over, after the “demand” has been
met.
5.6.4 Combined Chlorine. Weak chlorine which is combined with the contaminants in
the water.
5.6.5 Free Chlorine. Active chlorine in the water with the potency to destroy
contaminants.
5.6.6 Shock Treatment. The removal by means of oxidation of those materials that have
chlorine demand.
5.6.7 Superchlorination. An extra large amount of chlorine added to the water.
6.0 ADDING SALT TO POOL OR SPA
6.1 Adding Salt
6.1.1 DO NOT add pool/spa chemicals directly to the skimmer. This may damage the
cell. Maintaining high salt levels above the recommended range can contribute to
corrosion of pool/spa equipment. If the chlorinator has already been installed, it
must be turned off before adding salt. The recommended salt concentration for the
CPSC Series is 3500 ppm.
6.1.2 For pools it is best to empty the required salt into the shallow end of the pool and
run the filter and pump simultaneously while the CPSC Series chlorinator is off or in
manual mode to circulate the water and dissolve the salt. Do not throw the salt bag
into the pool or spa as chemicals and inks on the bag can interfere with the water
balance.
6.1.3 Salt may take 24 – 48 hours to dissolve in the summer and longer in the winter.
Finer granules of salt will dissolve faster than compressed pellets.
6.2 Type of Salt to Use
6.2.1 The purer the salt the better the life and performance of the electrolytic cell. Use a
salt that is at least 99.8% pure NaCl. The preferred salt is an evaporated,
granulated, food quality, non-iodized salt. Consult your local pool store.
6.2.2 Avoid using salt with anti-caking agents (sodium ferrocyanide, also known as YPS
or yellow prussiate of soda) that could cause some discoloration of fittings and
surface finishes in pool.
6.2.3 Water conditioning salt pellets are compressed forms of evaporated salt and may
be used but will take longer to dissolve.
6.2.4 Do not use calcium chloride as a source of salt (use sodium chloride only).