A solar water heating system requires little maintenance:
a. Cleaning of the panel glass at the beginning of the sunny season and when needed if there is a build-up of pollutants (dust, leaves, grease, …).
b. Changing of the internal anode every year is essential to keep your solar water heater performing.
c. Checking (and ﬁlling if needed) the closed circuit ﬂuid, this is best undertaken the beginning of the sunny season;
d. Checking (and substituting when needed) the insulation of the water and ﬂuid pipes;
e. For the closed circuit ﬂuid, use distilled water and approved glycol only. Do not use any other ﬂuid mixture because this will shorten the product’s life span.