3. After about 12 hours a stainless steel brush and a garden hose fitted with a brass jet
gurney (available from hardware stores) can be used to remove algae from the pool walls.
4. Floc the pool with a clarifier. A blanket of debris will settle on the pool floor overnight
and can then be vacuumed directly to waste (i.e. NOT through the filter). Following this,
the pool should attain a clean, clear condition after a few days of 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.
Remember: if just 1 litre (approx. 2 pints) of an algaecide containing ammonium
compounds
is
added
to
the
pool,
roughly
2 litres
(approx.
4
pints)
of
chlorine
will
need
to
be produced or added in order to neutralize the algaecide alone.
As a guide, the WATERMAID chlorinator may need to be run non stop for 8-9 days at 20
amps/hour 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. Follow the manufacturers
recommended procedures.
11. ELECTRICITY COSTS
When an Australian 240VAC model WATERMAID chlorinator is running at full
capacity, it is using 420 watts of power.
{POWER (watts) = VOLTS X AMPS}
Therefore the cost to run a Watermaid chlorinator at full capacity is worked out using the
following formula:
COST = NO.OF X HOURS X COST PER TO WATTS RUN KILOWATT RUN
DEVICE HOUR USES/1000.
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=40.782=41c/day
