Should you experience a burst geyser do the following to minimize further damage to your property:
find shutoff valve or stopcock on geyser incoming line, should be within 1m of geyser.
alternatively check driveway ...there should be a cover near front of driveway turn off water.
shutoff power to geyser at main db board
call a professional.
Should you experience a leak (non-specific):
Should you experience a leak (specific):
check close to appliance i.e. basin etc, for small valves (angle valves).
if these angle valves have been installed turn to close, this will isolate only the problem appliance.
if angle valves are not installed follow method above to shut off water supply.
call a professional