Davey SCMax 77 ECOMATIC Salt Water Pool Sanitizing System - Manual (Page 10)

10
Life of ECO-matic electrolytic cells will 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 ECO-matic replacement cell to match your system.
Note: Only an ECO-matic reverse polarity cell is approved for use with an ECO-matic (formerly known as Eco-salt SC
MAX) Power Supply.
Serious damage may result to the electronics inside the unit if copy cells are used and may therefore void the warranty.
How to clean your ECO-matic Cell
First disconnect the cell from the Power Supply Unit and remove from the pool return line by undoing the unions. Take
care not to lose the o-rings and always make sure the pump is turned off.
Always wear personal protective clothing such as rubber gloves and glasses while cleaning your cell.
Method 1:
Add 1 part (3% active strength) Hydrochloric Acid (Muriatic Acid) to 10 parts water in a suitable container. The Cell should
be placed on a surface that allows it placed upside-down to form a U shape. The solution can be poured into the up-
turned cell. Take care when doing this as the solution can foam and create a spill which must be cleaned up by dilution.
When clean, the Cell should be rinsed thoroughly with water and the connection should be dried carefully to avoid
connector corrosion. It should not take longer than a few minutes to clean; if it does the Cell should be cleaned more
frequently. Return the Cell to its position and re-connect it.
Method 2:
As an alternative, an approved commercial Cell cleaning solution can be used a number of times effectively. Frequent
cleaning of cell required in areas with water containing high iron content.
Safety Device
Hydrogen Gas is a by-product of the chlorine production process. A Gas Sensor has been incorporated into the Unit and
Cell, which will switch off chlorination if gas is detected in the Cell Housing or there is no water flow.
WARNING: This safety device should not be altered with in any way.
1 Part Acid
10 Parts Water
Warning: NEVER add water-to-acid. ALWAYS add acid-to-water
The weak acid solution can be stored in a safe place (where children cannot access it) and
re-used several times before becoming ineffective (saves having to make the solution each
time). Avoid getting the acid solution on skin or in your eyes. If you accidentally do so, wash
off immediately with fresh water (or use the pool/spa water).
Please do not hesitate to contact your ECO-matic Dealer for any assistance regarding ‘Cell’
cleaning.
3% Active
Strength
acid in
water