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FOUR KEYS TO CLEAN, CLEAR, AND SAFE POOL WATER
WATER CHEMISTRY
CLEANING
FILTRATION
CIRCULATION
ALGAE
Algae are an aquatic, plant-like organism. It is introduced to pool water as an airborne spore. There are three main types of algae:

GREEN ALGAE
Green algae is the most common of form of algae. It appears as a streaky, slimy buildup, first noticeable on steps, in corners, and on the
plastic surfaces of skimmers and return fittings.

YELLOW ALGAE
Yellow algae, also known as brown algae or mustard algae, have the same slimy texture as green algae, but it is more difficult to remove.
Yellow algae love shade, and will often appear in covered pools. This form of algae grows in a long, streaky pattern, appearing on pool
walls, in corners, and on steps and love seats.

BLACK ALGAE
Black algae are the least common form of algae, but once it blooms in a pool, it is extremely difficult to eradicate. Black algae are usually
the result of chronically low chlorine levels: it is often found in leaky pools, where near-daily replenishment of the pool water is necessary.
As hundreds or thousands of gallons of fill water are added to the pool, chlorine and stabilizer levels drop, allowing black algae to gain a
footing.
Black algae first appears as small specks, often at the deepest part of the pool, These specks rapidly develop into large, dark blue to
blue-green colored buttons, slimy to the touch and virtually impossible to brush away. Untreated, black algae will quickly spread across
the entire surface of the swimming pool.
Proper water chemistry is required to keep a swimming pool safe and clean for
swimmers.
Don't allow leaves and other debris to sit on the floor of your pool.
Your filter must be clean, well maintained, and your pump must be running
an appropriate amount of time each day. Usually this is one hour per 10
degrees of heat plus one for good measure. i.e. If high is averaging 100
degrees this month your pump should be running 11 hours a day.
Your pool water should always circulate in a clockwise direction if possible.
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