Preparing The Swimming Pool; Adding Salt To The Water - Pentair Posi-Chlor-15 Owner's Manual

Salt water chlorinator

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Table Of Contents

Table of Contents

2.1

Adding salt to the water

To ensure that the chlorinator works correctly, a small amount of salt should be added and

the pH level should be suitable.

The recommended salt and pH levels are the following:

Salt Concentration

(Range)

3000-8000ppm

3-8kg/m3

3-8g/L

Note: When using mineral salts, ensure total salt concentration is as per the above table,

however it is necessary to ensure that mineral salt blend does not allow total magnesium

chloride to exceed 1000ppm.

Although the equipment will start to operate with lower amounts of salt, the optimum

production of salt will be reached with concentrations of over 3000ppm. We recommend

starting with a concentration of 4000ppm to offset small losses of salt occurring when

backwashing the sand filter, the effect of rainfall, spillover, etc.

To calculate the salt to be added, multiply the total volume (m³) of your swimming pool x 4kg.

Example: A swimming pool measuring 9m in length x 4m in width x 1.4m in depth, using an

Posi-Chlor®;

Therefore approximately 200kg of salt needs to be added.

We recommend using salt that is especially prepared for use in salt water chlorination

installations, as it is especially prepared for rapid dissolution and to achieve optimum

results. You can find it at retailers specializing in swimming pool products.

ATTENTION

When adding salt to the swimming pool, first disconnect the chlorinator (or

turn it OFF), and start-up the filter for 3 or 4 hours, in order for the salt to fully

dissolve and not to overload the equipment. Once dissolved, switch on the

chlorinator.

It is advisable to add salt to the swimming pool gradually, in 2 or 3 lots, so as not

to exceed the recommended amount. Excess salt can overload the chlorinator,

in which case it will automatically stop working and water will have to be added

to reduce the concentration.

We also recommend not to add salt near the suction points (skimmer, drains), to

avoid undissolved salt from circulating in the water circuit.