Compu Chlor Manual AU 8
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
electrolytic cell. Maintaining high salt levels above the recommended range can
contribute to corrosion of pool/spa equipment. If the chlorine generator has already
been installed, it must be turned off before adding salt. The required salt
concentration for the Compu Chlor is 2500 – 3000ppm. Do not exceed a water
salinity of 3,000ppm.
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 Compu Chlor chlorine generator is
off 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 more pure 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 discolouration of fittings and
surface finishes in the 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).
6.2.5 Do not use Rock salt. Insoluble impurities mixed with the rock salt can shorten the
life of the electrolytic Cell.
6.3 Salinity Level
6.3.1 The Compu Chlor chlorine generator requires a salinity level of 2500 – 3000ppm.
To achieve this salinity, follow the chart in section 6.3.4. If you are unsure of the
number of litres in your pool, double-check with the equations below.
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