Pink algae are not really algae
at all, but a form of
bacteria. Commonly referred to as "pink
slime", this type of swimming pool algae appears as reddish, pink spots or slimy
streaks in corners and cervices, pipe-fittings and light fixtures on the water's surface which may slowly spread over
an entire swimming area.
will form slimy pink or clear layers over your swimming pool's surfaces. It
typically appears in areas of the swimming pool that aren't exposed to direct
sunlight, and that have little to no water movement.
are a few steps to take to help you get rid of those pesky pink algae:
the chemicals. Be sure the pH, alkalinity and water hardness are at the correct
the water’s pH to 7.0-7.2, the hardness to 150-250 ppm and the alkalinity to
the pink algae to the water’s surface by brushing the bottom, sides and steps
of the pool.
- Run the
filter continuously and backwash twice per day until the water is clear again.
your pool to kill off the algae. This entails raising the chlorine to 12ppm.
brushing the walls, vacuuming the bottom of the pool, filtering and backwash to
remove additional algae.
the chlorine level is town to 1.0-3.0ppm, it is safe to swim again.
It’s important to remember that correctly
getting rid of any type of algae takes time. If the pink algae aren’t completely removed, the
re’s still a chance for
it to continue to grow and spread. If a serious infestation occurs, it can turn
the pool water cloudy or green, and if it won’t come off at all by brushing it,
then you may have a more serious problem such as metal staining.
and other anti-algae treatments are often useless against pink algae since the
pink slime is caused by bacteria, not by true algae; however, there are
formulas that will kill most types of bacteria, and specifically pink slime,
which can be found at your local pool store.
it’s not entirely clear why pink algae is a reoccurring problem, we do know
that it occurs outside of swimming pools as well; in fact, the growth of the
bacteria can occasionally be seen in toilet bowls, sinks, and shower areas, so
you pool owners aren’t alone! But one thing is clear: by properly maintaining the water chemistry
, and environment
of your pool, you’ll have a better
chance of avoiding pink algae in your swim area.