Scrub the algae with a soft nylon brush.
Brown stains on pool liner.
Organic pool stains are treated by shocking the pool with a chlorine shock treatment.
Using a trichlor tablet hold it on the stain for about 3 5 minutes.
Use a stick or a pool pole not your finger.
Mineral pool stains are treated with acidic stain removers.
Prevent vinyl pool stains.
All natural pool enzymes will eat away at organic material to remove the pool stain with little or no scrubbing and without the use of harsh chemicals that damage pool liners.
If your stain is all around the waterline of the pool because of material floating at the top an enzyme based cleaner will help to break down organic compounds and oils.
If that doesn t work try a stain remover.
Watching the pool like a hawk for foreign objects keeping it clean and keeping it balanced are the main ways to keep stains off of your pool liner with special attention to how you add pool chemicals.
If it s closer to a brown black and is found on the sides of the pool as well then you might be looking at metal.
How to remove brown algae stains from a vinyl pool liner by launie sorrels.
In most cases this is all that is needed with vinyl pool liners.
Preventing pool liner stains requires vigilance.
And brown stains concentrated on the bottom can likely be attributed to dirt stains typically enhanced by calcium buildup.
Treat your pool liner for your type of stain.
If the stain lightens up or disappears it s organic.
Go to this page to see how to treat your pool for brown algae.
Once the algae has appeared onto a vinyl pool liner it is not hard to get rid of but it is a good indication it is time to check the pool s chemical levels.