WHAT TO DO IN CASE OF ALGAE ATTACK
Why does an algae attack occur ?
!
Worn Bionizer anodes, where the user did not see the
red light on the Bionizer flashing.
!
pH allowed to drift too high.
!
High phosphate level in the pool water.
!
High biological loading, such as large amounts of
leaves in the pool and skimmer basket.
!
Pool pump not pumping sufficient water, or failed
completely.
!
Weather changed from mild to hot, and the Bionizer
Ionizing Time or Ionizing Output was not sufficient to
treat the pool.
!
Generally incorrect pool balance.
How should I eliminate the algae ?
1. First, the algae needs to be killed. The quickest and
easiest way to do this, is to Super-chlorinate the pool.
See Super-chlorination on page 29. Run the filter for 24
hours, to ensure that the Chlorine is circulated well
throughout the pool and the filter.
Hint : Since you are using a Bionizer and are not likely to
have any Chlorine stabilizer in your pool, Super-
chlorination should be done in the early evening, so
that the Chlorine stays in your pool overnight. This
way, you won’t have Cyanuric acid left in your pool
after the algae attack has been removed.
2. Next, the dead and dying algae must be removed from
your pool. Thoroughly brush down the sides and floor
of the pool. Run the filter while doing this, so that the
particles get trapped there.
3. Check your filter’s pressure gauge often. When the
pressure rises to 50kPa or more ABOVE THE USUAL
RUNNING PRESSURE, it’s time to backwash (sand
filter), or clean the filter cartridge (cartridge filter).
For a heavy algae attack, you may need to backwash or
clean the filter several times. To remove the last of the
cloudiness, you may use
Bionizer Blue
. This specially
formulated clarifier is 100% compatible with your
Bionized pool.
4. Once the water has cleared up, there are several
problem areas that you need to check for further algae
infestation :
!
If you have a pool blanket, wash down the underside of
the blanket with liquid chlorine, as there will be algae
spores attached there. An easy and safe way to do this,
is to fit the blanket into the pool upside down, and use
a bucket of chlorine, your pool brush and a garden
hose to wash it down. This way, excess chlorine that
spills off the blanket only ends up in your pool, not on
your lawn or pool surround.
!
If possible, remove the “dress ring” that surrounds
your pool light and check behind there. This is a
favourite place for algae to hide.
!
In and around the skimmer box also needs to be
cleaned well.
!
Any other nooks and hiding places, such as the
underside of decorative rocks and so forth.
Following these simple steps will have your pool sparkling
and clean again within 1 or 2 days, depending on the
severity of the algae attack.
How can I prevent a future algae attack ?
Algae prevention is easy and economical with the Bionizer
pool system. Follow these maintenance steps and you will
spend more time swimming and less time working in your
pool :
!
Check your Copper level weekly, and adjust the
Ionizing Time and/or Ionizing Output of the Bionizer as
needed, to keep a level of between 0.5 and 0.6 ppM
Copper in the pool.
!
pH and Total Alkalinity are two of the most important
pool parameters. Check them weekly and add acid and
buffer as required. A pH BOSS takes the time and
guesswork out of pH, by measuring and controlling pH
constantly whenever your pool pump is running.
Visit
for more information.
www.phboss.com
S ca n t h i s Q R C o d e w i t h y o u r
smartphone or tablet to go to the pH
Boss web site.
!
Use
Bionizer PFP
Phosphate remover to ensure
there are no phosphates in your pool to feed algae. So
after killing the algae, treat your pool within 2 to 3 days
with the Phosphate remover.
!
Check all other pool balance levels monthly to ensure
that the Bionizer pool system is working at its optimum
performance.
BIONIZER SUPPORT PAGES
29
