Hayward AquaRite UV Low Salinity Manual Del Usuario página 44

7. SERVICING
During the first 10-15 days, your system will require more attention:
- Check that the pH remains at the ideal level (7.2 to 7.4).
- If the pH is exceptionally unstable and uses a lot of acid, check the alkalinity (see table Chemical water balance).
If the balance is highly unstable, contact your pool installer/builder.
REMEMBER that the system needs a certain amount of time to adapt to your pool and will require additional chemicals
during the first 3-5 days.
The pool must be regularly maintained and the skimmer baskets emptied whenever necessary.
Also check that your filter is not clogged.
ADD WATER: It is preferable to add water via the skimmers so that it passes through the cell before entering the pool.
Remember to check the salt percentage after adding water.
DOSING PUMPS: Regularly check the acid level to ensure that the pump does not run dry. The dosing pump must be
checked and serviced at regular intervals. The Santoprene tube of the peristaltic pump has a lifetime of 2 years. We
recommend that you change it once a year.
Servicing the pH probe
The probe must be clean and free from oil, chemical deposits and contamination to function properly. As it is in continuous
contact with the water in the pool, the probe may need to be cleaned weekly or monthly, depending on the number of
bathers and other specific characteristics of your pool. A slow response, more frequent pH calibration and inconsistent
readings indicate that the probe needs to be cleaned.
To clean the probe, turn off the power to the AquaRite UV LS.
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Unplug the probe connector from the unit, unscrew the probe and carefully remove it from the chamber. Clean the probe
bulb with a soft toothbrush and regular toothpaste.
A household washing-up liquid detergent may also be used to remove any oil.
Rinse with fresh water, replace the Teflon tape on the threads, and reinstall the probe.
If the probe continues to give inconsistent readings or requires excessive calibration after it has been cleaned, it should be
replaced. The lifetime of the probes is 1 year. We recommend that you calibrate them every month during the season the
pool is in use.
Servicing and cleaning the cell
Turn off the main power supply to the AquaRite UV LS before removing the cell. Once it has been removed, examine the in-
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side of the cell for any traces of scale (whitish brittle or flaky deposits) and debris stuck to the plates. If no deposits are visible,
put the cell back in place. If deposits are visible, try to remove them with a garden hose. If this method is unsuccessful, use a
plastic or wooden tool to remove deposits stuck to plates (do not use a metal tool as this will damage their coating). A build-up
of deposits on the cell indicates an exceptionally high concentration of calcium in the pool water. If you cannot find a solution to
this situation, you will have to clean the cell at regular intervals. The best way to avoid this problem is to maintain the chemical
composition of the water at the recommended concentrations.
Acid washing: This should only be done in severe cases where flushing will not remove most of the deposits. To acid wash,
turn off the main power supply to the AquaRite UV LS. Remove the cell from the piping. In a clean plastic container, make up
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a solution of water and acetic or phosphoric acid (such as that used to remove scale from a coffee machine). ALWAYS ADD
ACID TO WATER – NEVER ADD WATER TO ACID. Be sure to wear rubber gloves and protective goggles for this operation.
The level of the solution in the container should just reach the top of the cell, so that the wire harness compartment IS NOT
under water. It may be helpful to coil up the wire before submerging the cell. Allow the cell to soak for a few minutes, then rinse
it with a garden hose. If the deposits are still visible, soak and rinse again. Put the cell back and examine it from time to time.
Probe storage
The end of the probe must always be in contact with water or a solution of KCl. If it is removed from the measuring chamber,
it should be stored in the plastic cap provided (filled with water). If the storage cap has been mislaid, the probe should be
stored separately in a small glass or plastic container with its end immersed in water.
The probe must always be in a frost-free environment.
AquaRite UV LS Page 20 on 22
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Only use spare parts supplied by Hayward brands
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