Davey MCxxC CHLOROMATIC Salt Water Pool System - Manual (Page 11)

11
MAINTENANCE OF ELECTROLYTIC CELL:
The cell is composed of precious materials, and although proper maintenance can prolong its life to the maximum,
eventually the process of electrolysis will wear away its delicate coating, at which time it gradually ceases to
produce chlorine.
Mineral salts and calcium (scale) are deposited on the outer and the inner plate as electrolysis takes place. This
build up – will interfere with the flow of electrical current in the Cell and thus lowers sanitiser production. It is
essential to inspect the Cell regularly and clean when necessary. The rate at which deposits will form on the plate
differs with each pool and can be influenced by the following:
• Calcium hardness of the water
• Water Temperature
• pH control
• Water which has been chlorinated with calcium hypochlorite for an extended period
• Calcium in the plaster surfaces of a concrete pool
Because these conditions vary so much, check the Cell at least weekly to begin with to see when either scale or a
blue/green soapy substance appears on the plate. You will then be able to determine the cleaning cycle necessary
for your pool (obviously more in summer). The intervals between cleaning could get longer to the point where
cleaning is only necessary a few times each year. One exception is the use of bore water or ground water, in which
case cleaning may always need to be as frequent as once a week.
NOTE:
In areas with hard water, reverse polarity systems may require occasional manual cleaning.
Life of ChloroMatic ® electrolytic cells vary substantially from one installation to another due to variations in
operating time, water quality and composition, system and cell maintenance. Please ensure that when cell
replacement is necessary you use the correct genuine ChloroMatic ® replacement cell to match your system. Due
to increased cell output reverse polarity Model ESC40 cells will require earlier replacement than ESC24 Models
operating under equivalent conditions. Model ESC40 systems use the same cell as the ESC24. The correct
ChloroMatic ® Replacement cells to use are:
ChloroMatic ® ESR Standard ChloroMatic ® ESC / ESCpH: Reverse Polarity Cells
ESR Standard Systems
Model
ESR Replacement Cell
Model to order Code
ESC / ESCpH
Systems Model
ESC Replacement Cell
Model to order Code
110 110 M0741 16 16 M0656
160 160 M0753 24 24/36/40 M0657
200 200 M0755 36 24/36/40 M0657
300 300 M0759 40 24/36/40 M0657
50 50 M4922
To clean the cell : Turn off chlorinator. Remove all leads connected to the Head Assembly. Unscrew the Cell by
turning the Head Assembly clockwise – as per instructions, and withdraw from the Cell Housing.
METHOD 1
Add 1 part HYDROCHLORIC ACID to 10 parts WATER in a suitable container and immerse the Cell in this
solution. It should not take longer than a few minutes to clean, if it does the Cell should be cleaned more
frequently. If the build – up is not excessive it may be possible to clean the cell plates with a jet of running water.
Return the Cell to its Housing and connect leads to the Head Assembly.