Operation - Hayward Sense and Dispense Installation And Operation Manual

Before operating the Sense and Dispense™, test and adjust the pool water chemistry to the
recommended levels in the AquaRite Pro manual. This is an important step and is crucial to the
successful operation of the Sense and Dispense™. Adjust salt to recommended levels.
During normal operation, the Sense and Dispense™ will sense ORP and pH requiring no user
input. The current ORP and pH levels will periodically be shown on the display. Pushing the
"<" or ">" buttons will advance you to this display quickly.
The desired ORP and pH levels can be changed by restarting the Chemistry Config. Wizard.
Controlling pH with the AquaRite Pro
Plaster pools and pools serviced by salt-chlorine generators typically cause a slow pH rise which
must be managed. With the Sense and Dispense technology, acid is dispensed into the filter
system's return water as needed until the pH probe reports proper pH level.
IF YOU CHOOSE AN ACID FEEDER FOR pH CONTROL, additional safety precautions are
required to ensure that an equipment malfunction is detected. Great care must be taken when
installing, maintaining and operating acid pump feed systems. Acid is dangerous to handle,
and will harm people and equipment if not properly contained, transported, poured, stored, and
dispensed.
CAUTION: Equipment failure can potentially cause too much acid to be dispensed into the
water, causing an equipment and health hazard which would not be detectable without the use
of independent pH measurement.
•
To prevent violent boiling and splashing, ALWAYS ADD ACID TO WATER, never add
water to acid to dilute it.
•
Strictly follow the acid vendor's safety and handling protocols including hand, body and
eye protection when transferring or handling acid.
•
Limit the available acid reservoir to 1 liter per 15 m
acid in the event that equipment malfunctions and empties the tank into the pool.
•
Only a properly installed and maintained system will control the pH and sanitizer levels
of the water.
•
If acid is not diluted properly or the feed pump is oversized, it will overshoot the pH cor-
rection.
•
Periodically use an independent pH and Chlorine test kit to verify that pH is at a safe level,
and that chlorine is at a safe level. If the probes are broken, depleted, dirty, fouled with
oils, lotions, or other contaminants, they can report inaccurate result to the system causing
incorrect water chemistry, which at worst, could harm people or equipment.
•
Check the AquaRite Pro display each day before entering the water. If there is any Check
System alarm, following the troubleshooting guide in this manual to understand and rectify
the condition. If the display is blank, or reporting a communications error, troubleshoot
the equipment and rectify the failure before entering the water.
•
Follow the installation checklist to verify proper operation upon installation and at the
beginning of each pool season.

Operation

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of water. This limits the available
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