Zodiac DuoClear, Installation Manual And Owner'S Manual

13

Add Salt Indicator 

The Add Salt light (3) may come on at any salt level between 3000 ppm and 4000 ppm depending on
water temperature. This is not a fault but a precaution to ensure the salt level is never too low. Scale build-
up on the electrodes can also cause the light to come on, indicating manual cleaning is required. When
the light is on the chlorine output may not reach maximum. Once the Add Salt condition is resolved, the
output will function properly again.

Note: Operating the DuoClear system at reduced salt levels may shorten the life of the cell.

No Flow Indicator

The red No Flow Indicator (4) signals insufficient flow through the unit. Chlorine production stops until
proper flow is restored.

ON/OFF Button

The ON/OFF button (8) manually switches the DuoClear system ON and OFF. Operation of the ON/OFF
button does not change the pool timer settings.

Nature2 Cartridge 

The DuoClear Nature2 cartridge lasts six months from the date of installation. The Nature2 Cartridge
Indicator (5) reflects the life of the cartridge. When the cartridge is installed and started, press the
NATURE

2

RESET button (9) to start the Nature

2

Timer. The indicator, which consists of four lights,

displays three lights - two green, one yellow. As the timer counts down, these lights progressively go out
and the fourth, a red light comes on and flashes indicating the the cartridge needs to be replaced.

IMPORTANT: If the cartridge is not replaced promptly the pool will not be sanitized properly by 
the chlorination alone, even at full output.

The NATURE

2

RESET button is used only at startup and whenever the Nature2 cartridge is replaced.

Startup Procedures

Before starting the DuoClear system the required amount of salt (based on pool size) must be added to
the pool. (See Salt Requirements chart in Maintenance).

Note: On new plaster pools, wait 4 weeks before adding salt. During this time, unplug the DuoClear
output cable and manually chlorinate the pool.

1.

Make sure pool is clean and pool water is properly balanced.

2.

Install the DuoClear cartridge.

3.

Manually shock the pool water with chlorine (sodium hypochlorite)
to activate the cartridge.

4.

Set the CHLORINE OUTPUT to maximum.

5.

Press the NATURE

2

RESET button to activate the cartridge timer.

6.

Run the system for either 4 days, 24 hours a day or 14 days, 
6 hours a day, maintaining a chlorine level of 1-3 ppm throughout.
An initial 24-hour runtime is needed to fully charge the Nature

2

Timer battery.

7.

Gradually reduce the chlorine output setting the until free chlorine
level is 0.5 - 1.0 ppm. Note: Minimum run time is 6 hours per day.