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HYDRO’pH
®
,
HYDR’ORP
®
,
HYDRO’pH Duo
®
and
HYDRO’pH/ORP
®
instructions
7
Maintenance
7-1
Maintenance of PH and ORP sensors
Sensors for pH and ORP are maintenance free (to change). However, the good physical condition of
sensors should be checked regularly.
Check there is no dirt or leaves on the heads of the sensors
Carry out their checks by performing calibrations of control
Remove them during winter and keep them in original packaging. Do not forget to put water
or (better) retention liquid in the sensor cover.
CAUTION:
The sensors should never be left dried in the pool hose.
If dewatering the lifetime is reduced or terminated.
CAUTION:
Repeated surchlorations or deposits of chemicals can affect the
operation or destroy sensors.
CAUTION:
Flocculation should never be made on direct contact with sensors. If
flocculation occurs in a skimmer so continuously, it is recommended
to mount the sensors after the filter.
7-2
Maintenance of the dosing tubes of the metering pumps
Once the pump tube has cracks or leaks, make the change immediately.
Procedure for changing the tube:
Unscrew the fixing screw
of the front cover panel
and remove it
Position the roller holder
at 10H20.
Completly clear the left
connection stretching it
outwards and then
rotate the roller holder
to clear the tube.
Position the roller holder
at 10H20.
Insert the left connection into its slot, then
pass the tube under the roller holder
guide. Turn the roller holder,
accompanying the tube in the pump head
until the right-hand connector.
Show the cap on the
pump within the arrows,
then tighten the fixing
screw of the cover.