Add chemicals as necessary to adjust the pool s ph level to.
Brown algae stains in pool.
Run the filter and backwash it to move additional debris.
Scrub the algae with a soft nylon brush.
To confirm it s a metal stain get a vitamin c tablet crushed up acsorbic acid put that in a sock and place it on the stain.
Clean the pool as much as possible to break up the algae using a brush leaf rake and vacuum.
If the stain doesn t lighten up gets darker or the color changes to black it s probably a metal stain.
What are these brown stains in my pool.
Add enough chlorine to your pool to bring the free chlorine concentration to between 1 and 3 ppm.
How to kill brown algae in a pool step 1.
In most cases this is all that is needed with vinyl pool liners.
This is one of the most difficult types of algae to get rid of and gets its name from its yellowish brown color.
If the stain is old or excessive then the pool may have to be shocked to remove the stain.
Test the pool s water using a pool testing kit.
Clean the pool s.
Brown algae you can also use about 1 2 lb.
Of calcium hypochlorite granular chlorine in an old sock to put on a spot.
The appearance of brown algae on the bottom of the pool is a sign of the beginning of an infestation of mustard algae.