Things You'll Need:
- stainless steel algae brush
- long white athletic sock
- calcium hypochlorite granular chlorine 52% or so strength
- a rock to put into the sock to hold it inplace
- some string
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Step 1
Vacuum your pool, backwash your filter, lower your PH level to 7.2, adjust Free Chlorine level to 1.5-3.0 ppm( pink CL2 test, not yellow ) remove your automatic chlorine tablets
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Step 2
It's best if you stop the pump and allow the water to stop circulating...
but not required -
Step 3
Brush the algae spot you want to concentrate on with the algae brush
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Step 4
Put the rock in the sock and fill the sock about 1/2 full with granular chlorine and tie the sock closed.
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Step 5
If the algae location is on the side or corner wall tie the string to the sock and hang the sock from the deck with the string attached to something heavy on top to hold it in place. Position the sock so it is against the algae.
If the algae is on the floor just drop the sock on top of the algae. -
Step 6
Twice a day or more if you have time move the sock and brush the area. Chlorine will burn off layers of the algae at a time, but the algae will then form a tough crust to protect itself from further burning. You must continue this process of brushing until the algae is gone. You may want to treat multiple sites at one time with more socks.
