REGULAR CARE
15
FLUSHING THE SOLAR COLLECTORS
It may be necessary to flush the solar collectors if there is sediment in the water
supply. This should be conducted in the morning, within three hours of sunrise,
when the water temperature inside the solar collector(s) is lower.
• Open a hot water tap and allow the water to run for five (5) minutes prior to
flushing the solar collector(s).
• Close the hot tap.
• Wait a further five (5) minutes before attempting to flush the solar collectors.
This will assist in the transfer of any high temperature water in the solar
collector(s) to the solar storage tank.
Warning: Exercise care, as water discharged from the solar collectors
may be of a very high temperature.
• To flush the solar collectors, follow the procedure “Bleeding the Solar
Collectors” on page 9, allowing the water to flow from the bleed valve drain
line for five (5) minutes before closing the bleed valve.
It is recommended to flush the solar collectors every five (5) years. This will
assist in keeping the solar collectors, solar cold pipe and solar hot pipe clear of
sediment.