(iii) MANUALLY CLEANING THE CELL
1. Turn OFF the power to the chlorinator and pump. There is no need to
disconnect the Cell from the Power Supply when cleaning.
2 a) For QT SERIES Cells:
Unscrew the white barrel unions at the top and bottom of the Cell and remove the Cell
from the pipe work. The top barrel nut is unscrewed anticlockwise and the bottom barrel
nut is unscrewed clockwise.
Aim a strong jet of water from a tap or hose into the Cell. If all scale is removed
successfully proceed to step 4, otherwise proceed to step 3.
b) For EZY300 Cells:
If the mesh electrode is clean, then separate the electrodes by pulling the brass plug out of
its socket, unscrewing the barrel nut anti-clockwise and lifting the centre electrode out. The
centre electrode only (being solid titanium) may be scraped clean. If all scale is removed
successfully proceed to step 4. Otherwise proceed to step 3.
If both the mesh electrode and the centre electrode contain scale, then remove the entire
Cell by unscrewing the T-Piece Barrel Nut
Do NOT attempt to clean the mesh electrode by abrasion. Proceed to step 3.
If the barrel nut is difficult to unscrew, the use of rubber gloves will give a better grip. Hot
water can be poured over the union and/or a little Vaseline over the thread may make the
next removal easier.
3. A dilute acid solution prepared according to the following procedure may be used.
Alternatively, a PHOSPHATE-FREE premixed "Cell-Cleaning Solution" (available from a
pool shop) may be used.
i) In a GLASS or PLASTIC container add 8- 10 parts of hot (not boiling) water.
ii) THEN add 1 part hydrochloric acid to the water.
iii)Either submerse the Cell or pour the dilute acid solution into the Cell. QT Cells can be
submersed in the solution or the solution can be poured into the Cell if one end is blocked.
One end may be blocked by using a cleaning cap with barrel nut, or sink plug.
For EZY300 Cells, avoid submersion of the brass plug and socket.
To clean both the anode and cathode, the EZY300 Cell may be turned upside-down as
one end is blocked and the solution poured inside. To clean just the cathode, submerse
only the electrode part in the solution.
The mixture may effervesce for up to 30 minutes, and thereafter should be discarded.
If the scale is stubborn, step 3 may need to be repeated.
4. Rinse the electrodes with tap water and return to pipe-work ensuring not to over
tighten the barrel unions.
