What kind of maintenance is required?
Most domestic Solar Geysers don’t require a lot of maintenance, as there are no moving parts in the solar geyser. The only maintenance needed is cleaning of the glass once a month for best results. And if you live in a hard water area, the decaling process once every year is recommended.
For Industrial systems, the pumps need to be inspected at frequent intervals, check for scaling and choking periodically and replacement of some parts of the control panel, as and when required.