Instructions pH FUN V1
Page 11 of 28
3.1.4 Replacing hoses
To replace the hoses, please proceed as follows:
•
Rinse the pump with fresh, lukewarm water for about 30 minutes. To do so, place the suction lances into a pail
filled with tap water and start a manual dosing (see Chapter 5 Performing a manual dosing).
•
Subsequently ensure that the system is fully disconnected from the power grid. This prevents the pump from
switching on during the maintenance procedure.
•
Remove the blue cover of the pump, loosen the sleeve nuts on the hose (2) and remove the suction and
pressure hose.
•
Press the band (1) together at the recessed grips and turn the catch (4) clockwise all the way.
•
Move both hose ends outward and remove the band (1) with the hose (2).
•
Pull the old hose (2) out of the two guides and insert the new hose.
•
To mount the band (1) and hose (2), proceed in reverse order. Ensure that the hose (2) is firmly seated in the
guides and that the catch (4) has engaged.
•
As soon as all connections have been closed, you can purge the air from the dosing hose. To do so, connect
pH FUN with the mains and start a manual dosing.
The purging is complete when you can no longer detect air bubbles on either the suction side (canister –
pump) or on the pressure side (pump – measurement cell for pH-Minus or injection piece for pH-Plus dosing).
Figure: Head of the vacuum pump
3.2
Electrode information
The electrodes must be replaced according to the maintenance plan annually or earlier if worn. Use original
replacement electrodes only. These can be obtained from your swimming pool dealer under BAYROL Art. no.:
185 301.
Like the dosing hose, the pH electrode is also a wear part and is exempted from the guarantee/warranty.
3.2.1 Electrode wear
The following conditions, among others, indicate that the electrodes are worn:
•
During the pH7 calibration procedure, the electrode takes unusually long to reach the value of the buffer
solution.
•
The deviation of the electrode during the pH7 calibration procedure is too large, the pH7 calibration is not
possible.
•
The white KCL salt rings in the electrode are used up or discoloured.
ATTENTION:
Electrodes wear very quickly if there is an electrical potential on the pool water!
Band
Hose
Pump body
Catch
