Hasa Algi Ban 2lbs 64122

Granular Tri-chlor

TO CONTROL BLACK ALGAE IN SWIMMING POOLS

DIRECTIONS FOR USE:

Where algae appears on bottom of swimming pool:
Adjust the pH of the swimming pool water to 7.2-7.6. Turn off filter and wait until water is calm enough to see spot on bottom. For best results brush black algae spots with a stiff bristle or wire brush prior to treatment. Pour approximately 1 oz. (1/8 cup) HASA ALGI-BAN directly over the spot and allow to settle to the bottom. Use enough HASA ALGI-BAN to completely cover the algae spot. Allow HASA ALGI-BAN to dissolve for a period of 45-60 minutes then brush black algae away. It may be necessary to repeat treatment or to allow more contact time.
Where algae is located on swimming pool walls:
Place 1 oz. (1/8 cup) HASA ALGI-BAN in a cotton cloth. Tie
with string and suspend the bag into the water so that it touches the black algae spot. Allow the HASA
ALGI-BAN bag to remain in place for 45-60 minutes, then remove and brush algae away. In extreme
cases it may be necessary to repeat treatment or allow longer contact time. For spot treatment on
walls and bottom use the prescribed dosage regardless of swimming pool volume in gallons.
Where swimming pool is infested with black algae:
Adjust pH and brush as explained above. Add at least one
pound of HASA ALGI-BAN per 4,000 gallons of swimming pool water and broadcast it over entire swimming pool surface all
at one time. Shut down pump for 24 hours. Follow this treatment with a thorough brushing. If a few
traces of black algae remain, the above process should be repeated, or the treatment for spot black
algae should be followed. In severe cases, where the swimming pool has been neglected for long periods of time,
consult your swimming pool service expert for advice.