Installation; I) Measure The Pool Or Spa Size; Ii) Adding Salt To The Pool Or Spa - Watermaid WM10LED Owner's Handbook Manual

3. INSTALLATION

The WATERMAID chlorinator may be installed by the pool owner. However, these instructions
should be fully understood to ensure correct installation and safe operation. Incorrect
installation may pose a danger and/or may damage the unit thus voiding warranty. If there is
any doubt, then an experienced pool technician or plumber should carry out the installation.

(i) MEASURE THE POOL OR SPA SIZE

The size of the pool or spa determines the amount of salt to add. If the pool or spa is
rectangular, the length, breadth and average depth are multiplied. If the pool or spa has an
irregular shape, then the average of the measurements can be taken.
Average Pool
9 x 4.5 x 1.5 m
=60,000 litres or 60 m 3
Average
Depth = 1.5M
or
30 x 15 x 4 feet x 6.25
=12,000 gallons
One bag of salt usually
contains 25 Kg or 40 lb.
For pool water with no salt, align "0 ppm" in either of the following Metric or U.S.
Measurements tables with the column that represents the size of the pool, e.g. a 60,000 litre
pool with no salt would need 360 Kg (approx. 14 x 25 Kg bags) of salt.
POOL SIZE (METRIC)
SALT 40,000 L 60,000 L 80,000 L
100,000 L
0 ppm 240 Kg 360 Kg 480 Kg 600 Kg
1000 ppm 200 Kg
300 Kg 400 Kg 500 Kg
2000 ppm 160 Kg 240 Kg 320 Kg 400 Kg
3000 ppm 120 Kg 180 Kg 240 Kg 300 Kg
4000 ppm 80 Kg
120 Kg 160 Kg 200 Kg
5000 ppm 40 Kg 60 Kg 80 Kg 100 Kg
SALT REQUIRED = Pool size (in litres) x 0.006
For pool water containing salt, find the salt level (in ppm) using a WATERMAID hydrometer
or reading from a pool shop and align this value with the column that represents the size of
the pool, e.g. an 80,000 litre pool with a salt reading of 4000 ppm would need 160 Kg
(approx. 6 x 25 Kg bags) of salt.
Empty the contents of the required salt bags to the pool or spa. For pools, it is best to add the
salt to the shallow end and run the filter and pump simultaneously to circulate the water and
dissolve the salt. The WATERMAID should be turned OFF or to standby mode (refer to
section 4). The salt bag should NOT be thrown into the pool as chemicals and inks can
interfere with the water balance. Quality pool salt (with low levels of iron and other
impurities) should be used. Finer grades dissolve faster. Salt may take 24 - 48 hours to
dissolve in summer and longer in winter. Alternatively, sea water may be used.
If the pool has no main drain, place a vacuum hose head in the deep end, and sweep the salt
toward the vacuum head. The other end of the vacuum hose should be placed in the skimmer
box. Run the filter and pump with the WATERMAID chlorinator OFF to circulate the undissolved
salt in the water.

(ii) ADDING SALT TO THE POOL OR SPA

DO NOT add pool/spa chemicals directly to the
skimmer. This may damage the Cell.
Maintaining high salt levels
recommended range can contribute to corrosion
of pool/spa equipment.
recommends a salt concentration in the
water of 6000 ppm (refer to section 8).
If the chlorinator has
installed, it should be turned off or to
standby mode (refer to section 4)
adding salt.
POOL SIZE (U.S. MEASUREMENTS)
SALT 10000gal 15000gal 20000gal
120,000 L
720 Kg 0 ppm 500 lb 750 lb 1000 lb
1000 ppm 417 lb
600 Kg 625 lb 833 lb
2000 ppm 333 lb 500 lb 666 lb
480 Kg
360 Kg 3000 ppm 250 lb 375 lb 500 lb
4000 ppm 167 lb
240 Kg 250 lb 334 lb
5000 ppm 83 lb 125 lb 167 lb
120 Kg
SALT REQUIRED = Pool size (in gallons) x 0.05
4
floor and can then be vacuumed directly to waste (i.e. NOT through the filter). Following
this, the pool should gradually attain a clean, clear condition after constant filtration and
chlorination.
5. Finally, the use of LANTHANUM CARBONATE (or "Starver") is recommended to reduce the
phosphorous content to less than 1 part per billion. This starves algae of an essential element for
growth.
As a guide, the WATERMAID chlorinator may need to be run non-stop for several days
to overcome the addition of an algaecide containing ammonium compounds AND any
debris. Otherwise, a sufficient chlorine reading may be impossible to obtain for up to 4
weeks.
For spas, it is often best to drain, clean and refill.
procedure.
above the
When an Australian 240VAC model WATERMAID chlorinator is running at full capacity, it is using
420 watts of power.
Watermaid
Therefore the cost to run a Watermaid chlorinator at full capacity is worked out using the
already been
following formula:
before
COST = No. of X Hours X Cost Per
TO
RUN
As an example, a WATERMAID chlorinator run for 10 hours in Sydney, where the domestic cost of
electricity is 9.71 cents/kWh, will cost a total of:
= 420 / 1000 x 10 x 9.71
25000gal 30000gal
= 40.782
1250 lb 1500 lb
= 41 c / day
1042 lb 1250 lb
833 lb
1000 lb
625 lb 750 lb
417 lb 500 lb
208 lb
250 lb
Schematic Diagram
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13. ELECTRICITY COSTS
{POWER (watts) = VOLTS X AMPS}
Watts Run kWh
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