Whether or not the algae is dead test the pool again for the new chlorine and ph levels.
Pool floor covered in algae.
This algae typically brushes away from pool surfaces easily but it quickly returns to nearby areas.
You need to test your chlorine and ph levels with a good test kit which are more accurate than test strips and bring your ph level to about 7 8 by adding sodium carbonate to increase it or sodium bisulfate will also need to make sure the chlorine is at least above 1 ppm.
Pool walls floors and steps are the most common places to find algae in your pool.
The exact tint of your water might not be so obvious plus it ll be cloudy so it may be difficult to tell which kind of algae has take up residence in your pool.
Dead algae turns white or gray and either suspends in the pool water or settles to the floor.
If your chlorine levels are higher 2 5 ppm but the algae is still there keep maintaining these levels as usual for the next couple days.
If left untreated algae can burrow their roots inside the cracks on these surfaces making them very difficult to remove.
Brush the pool walls steps and floor at least once a week more if necessary to prevent algae growth from forming in your pool.
To be sure which type of algae is in your pool which will determine how you get rid of it take a close look at any spots where algae is starting to grow.
Water green or cloudy.
This page covers having walls steps floors.
The actual surface of the pool being covered in algae.
In prevention and treatment water chemistry is one of the most important steps to getting and keeping your pool algae free.
It can also be resistant to chlorine making it more difficult to remove.
Swimming pool algae types.
Dirt or powder on the pool floor click here.