Running Times - Watermaid ecoblend Owner's Handbook Manual

13.3 Running Times

Ideally, the time clock should be set to operate the WATERMAID® chlorinator from late afternoon (when the
sun is off the pool) to continue throughout the night as necessary. As UV rays destroy chlorine, a chlorine
stabiliser is recommended during summer for outdoor pools.
Running times will depend on pool volume, bather load, water temperature, time of year, pump efficiency,
salt level, cell age and condition, cyanuric acid levels, pH, sunlight, water chemistry and the effects of
surrounding vegetation. Suggested running times for an average-sized domestic pool are shown in the table
(below).
With each change of season, the running times and mode (Summer/Winter/Spa) on the WM44 may need to
be adjusted and the pool monitored closely. The overall aim is to achieve a free chlorine reading of 1 - 3
ppm in the pool or 3 - 5 ppm for spas. The finest detail must be discernible at the bottom of the deep end of
the pool.
In addition to normal running times, the chlorinator, pump and filter should be run whenever bathers are in
the pool. And if a solar heater is installed and running times are set for chlorination and filtration in the
daytime, then extra chlorination in non-sunlight hours may be required.
On a monthly basis in summer, the boost feature may be used to super chlorinate and maintain a high polish
in the pool. Refer to section 8.
Public pools may require multiple chlorinators, pumps and filters, as well as 24-hour operation of the pool
equipment.
A good 'rule of thumb' is 1 kg (2.2 lb) of 100% available chlorine per 20 bather hours (2 people/10 hrs etc).
Copyright © 2017Watermaid Pty Ltd
Version 20170223
Season
Summer
Autumn
Winter
Spring
Suggested Running Times
8 - 14 hrs
6 - 8 hrs
4 - 6 hrs
6 - 8 hrs
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