Doheny’s Blog – How to Remove Brown Stains from Pool Liners

by admin on May 31, 2013

Have you noticed brown stains on your pool liner, walls, and stairs?  Doheny’s is here to help you clean those nasty looking pool stains and get your pool back to the clear blue that it should be. Just follow these simple steps and your pool liner and water will be back to normal in no time!


Check out Doheny’s pool stain removal guide:


Concrete & Fiberglass Pools Only: You can rub chlorine along only WHITE surfaces. If you have a blue painted pool it could potentially fade over time.

Vinyl Liner Only: DO NOT rub chlorine on this type of liner. It will remove the color and potentially create holes.

Get Rid of Stains with Chlorine

Chlorine is not only a great sanitizer for your pool in general, but it is also the perfect chemical to treat these ugly stains. Remember whenever dealing with pool chemicals to observe all safety procedures when it comes to your eyes and skin. Use rubber gloves to protect your hands when dealing with chlorine.

Take a chlorine tablet and rub it directly on the stained area (liner, walls, and/or stairs.) In this case, the more pressure the better-it might help get rid of the stain that much faster. If the tablet isn’t doing the trick, then feel free to purchase a tile scrubber for added ‘muscle.’ It might take a little while to remove these stains completely.

Add Pool Stain Remover

Depending on how many gallons of water you have in the pool, you should now add approximately 15oz. of pool stain remover to your water for every 10,000 gallons. You might need to apply this amount on a weekly basis to prevent and remove the current stain. Bring that tile scrubber back to action and use it on areas that still aren’t clear.

Use a Water Test Kit

When you notice that the stain is slowly starting to diminish, you are still not ‘in the clear.’ We recommend testing the water to be sure whatever it is that caused the stain in the first place is gone from your water supply. We have water test strips and kits available to help you balance the bacteria level in your pool. Solids should not read anywhere above 1500ppm, if it is closer to this range then you might need to add 1lb. of ascorbic acid for every 10,000 gallons of water. Test the water again to make sure it is free of dangerous bacteria and invisible organic matter. Feel free to repeat this step until you are sure the water tests clear.

Check Out Doheny’s Pool Stain Remover Kits:

stain removers





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{ 2 comments… read them below or add one }

bill hopper August 25, 2014 at 9:29 am

brown stains pool liner and ladder two days ago i added a chemical to remove metals i dont see ant results


Judith January 9, 2016 at 8:08 am

I have the same trouble my liner and stairs have a light brown stain on them tried everything


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