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How To Get Stains Out Of Vinyl Pool Liner

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Stains Behind The Liner

How To Remove Stains From A Vinyl Pool Liner

Some stains are actually behind the liner, in between the wall or floor and the liner. They start as a bacterial colony or can be algae or mineral crystals. If they are dark enough and large enough, they may show through the somewhat opaque pool liner and appear as a stain.

Short of pulling up the liner and treating or patching the floor, and foaming the walls, what can you do when the stain seems to be behind or underneath the liner?

Start with the methods above: good water balance and give a heavy chlorine shock. This may only work temporarily. If the stains are near the waterline or high on the wall, you can lower the pool water and get at the wall with a scraper, then place a barrier in between the wall and the liner.

How To Prevent Pool Stains Before They Happen

It is much easier to prevent pool stains than it is to remove them. Pool owners who practice good pool maintenance usually have far fewer stains to deal with. Here are some helpful tips for preventing stains in your swimming pool:

  • Always keep pool water balanced, including chlorine levels, alkalinity, and pH levels.
  • Frequently skim the pool surface to remove debris that may settle to the bottom of the pool and cause stains. Empty skimmer baskets regularly.
  • Run a robotic pool cleaner or manual vacuum regularly.
  • Test your water for metals, and use a metal sequestering agent to remove any metals that are present.
  • Keep pool equipment and plumbing well-maintained and free of corrosion to prevent rust stains.

When you understand the different types of pool stains and what causes them, you are better equipped to treat them and prevent them from recurring. If you need help dealing with staining in your pool, or have any questions about our pool products, contact us today, and one of our friendly pool experts will be happy to assist you.

Can I Clean My Pool With Bleach


Heidi Nikolov


  • Mix together one part bleach to four parts water.
  • Soak a rag or cloth in the solution and place the soaked cloth on top of the stain.
  • Leave the cloth in place undisturbed for one hour to let the bleach soak into the stain and lighten it.
  • Rinse the stain well with water and dry.
  • Fructuoso Juhra

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    How To Clean Your Inground Vinyl Swimming Pool Liner

    Youre taking a casual dip in your pool, diving in and enjoying the cool, refreshing water. Then you see it .. looming in front of you, lit clearly by the sunlight filtering through the water.

    A stain large, brown and unsightly; the terror of the deep, blemishing your pristine, crystal clear pool.

    Add Metal Remover In Your Pool Water

    Pool Stain Gallery by Periodic Products and CuLator Metal ...

    Metal remover is one of my best options because it works by removing heavy metals in your pool water through the filter, leaving your water clean and free of heavy metals that cause stains when chlorine is added, or pH levels scale high. Metal Magic by Pro Team is my preferred option since it removes all common metals from your water, including copper, iron, silver, and manganese.

    Metal Magic is non-foaming, pH neutral, and won’t affect your pH levels or cause foaming inside and around your pool. Moreover, it also removes current metal stains from your pool and scales from surfaces. It crystallizes and removes metals from pool water through the pool filter. Metal Magic is compatible with all types of filtration systems, and it doesn’t matter which filter your pool runs on. This product also protects plumbing and equipment, which is an added advantage on your pool parts.

    If you decide to use Metal Magic, the product dosage for initial treatment is 32 fluid ounces per 10,000 gallons of water. That is, if you have a 20,000-gallon pool, you will add 64 fluid ounces to be able to remove all metal compounds in your pool water.

    After the initial treatment dose, you will need to add this metal remover after a given period to keep your water free of metals. The routine maintenance dose should be between 36 fluid ounces per 10,000 gallons of water per month.

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    How To Remove Yellowstainsfrom A Pool Liner

    In order to remove the yellow stains from the liner/PVC membrane, the following treatment must be done:

    1st week:

    1- Increase the water level of the pool to cover the stained area

    Day 1 :

    2- Perform shock chlorination at 10 ppm of free chlorine

    3- Adjust the pH of your water to 7

    4- Pour into a skimmer 1 cap of metal inhibitor for every 50 m³ of water

    Day 4:

    5- Pour a new dose of 40 ml of;FERAFLOC;for every 50 m³ of water

    Day 7:

    Easy Pool Liner Cleaning Tips Every Owner Should Follow

    While most of us would rather be enjoying the pool than cleaning it, cleaning is part of life for pool owners. When done regularly and properly, cleaning will help keep your vinyl pool liner in tip-top shape. As you pull out the sponges, vacuums, and pool scrubbers, check out these tips to help make your cleaning process more efficient and prevent major maintenance issues down the road.

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    Closing Thoughts On Pool Stain Removal

    Getting rid of pool stains is simple when you know which tools to use for the job. And when you start by identifying what kind of stain youre dealing with, removing it becomes much easier. Follow the steps that were outlined in this post, and youll have spot free pool in no time.

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    Stains On The Vinyl Liner

    How to remove stains from your swimming pool liner – Pool stains (Problem Free Swimming Pool )

    You can determine exactly what the stain is, based on evidence gathered. Is it organics, or metals? Does it rub off, or brush off?

    • Start by cleaning. A clean pool and clean filter are the proper preparation for removing stains. Be sure to skim any leaves from bushes away, brush and vacuum your pool for clean pool water as well.
    • The next thing you need to do is balance the water chemistry. Make sure the calcium levels, alkalinity and pH are spot on.
    • Once youve balanced the water, make sure you shock the pool, using either diluted chlorine shock or non-chlorine shock. You can shock your pool every so often as a part of your autumn pool maintenance.
    • If that doesnt remove the stains, dont worry. You can drain and acid wash a vinyl liner. The trick is to remove vinyl stains more gently.
    • If youre unable to determine the source of the stain, you can use a stain Identification kit to identify the stain and then determine the next steps to remove the stains.

    Bottom Line

    With these tips on how to clean pool liner stains, you can enjoy a clean stain-free pool. Before trying to get rid of any pool liner stains, start with ensuring a good water balance and shocking your pool. If the stains are still there, you can then take the necessary steps to get rid of them.

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    Guide To Cleaning A Pool Liner

    If you need to clean your pool liner, there are many ways to do so. Pool owners have a few different options for how they can go about cleaning the liner. First, you should know that there is no right or wrong way to clean a pool and it just depends on what works best for you.

    The first option is using an automatic cleaner or robotic vacuum cleaner. This type of vacuum cleaner would work well if you dont want to bend over and scrub the bottom of your pool manually with a brush or netting.

    The second option is scrubbing your liners by hand which may be more effective than using an automatic cleaner depending on how dirty the bottom of your pool is as well as what type of pool liner you have.

    Run The Filter And Add Ascorbic Acid

  • Put your pool’s filter on circulation.
  • You need about 1 pound of ascorbic acid for every 10,000 gallons. So the amount to add will depend on the volume of your pool.
  • Using a tin or a cup, drop the ascorbic acid down the sides of the pool all around the perimeter, targeting most stain-affected areas.
  • Let the ascorbic acid circulate for around 30 minutes, and watch the metal stains fade away slowly before your eyes. If you still see small stains after 30 minutes, add more ascorbic acid on those spots while the filter is on for at least 24 hours.
  • After 24 hours, all the stains should have faded away. Start re-balancing your water chemistry after 24 hours.
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    Another Cause Of The Liner Stains

    It may not always be black algae or metal oxides causing the stains. Dye-producing organisms may be the culprits as well. These organisms will pitch camp at the backside of the pool liner. When they release the dye, it will wick through the liners fabric and form blotches.;

    Bottom Line;

    Black stains on vinyl pool liner;are not the best sight. They are telling you that something somewhere is not alright. Find the problem and work on it using the methods discussed here or find yourself a self cleaning pool. If you do it right, you should not have any black stain problems and will be able to keep your pool clean. Always make sure you know the cause of the stains before trying to remove them and follow proper pool care suggestions to maintain your new pool or newly renovated pool.;

    Vinyl Pool Stain Colors

    How to Clean your Inground Vinyl Swimming Pool Liner ...
    • Blue-green: This shows copper present in water or in the pipes bringing the water to the pool.
    • Reddish-brown: This shows iron or rust stains caused by corroded pool pipes.
    • Green, brown, red: Due to leaf deposits, flowers, pollen, or dust.
    • Black: Black pool stains on a vinyl liner show a mold build-up.

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    How To Remove Grime And Scale From Pool Tiles

    Over time buildup occurs at the waterline from our use of sunscreens and lotions, our natural body oils, and other materials that can make pool tiles dirty. The best way to get rid of all the buildup is to clean the entire surface using a pool tile cleaner that is formulated specifically for home pools. A tile and vinyl cleaning product that is intended for bath and shower use in your home isnt the same as one created just for pools and spas, so be sure to read the label carefully before using any cleaning products in your pool. Follow these steps to clean grimy pool tiles:

  • Pre-treat tough stains by scrubbing with tile cleaner spray and a scrubber sponge or pool brush.
  • Run your automatic pool cleaner or manually scrub all of the pool surfaces.
  • For really tough calcium buildup and soap scum that is hard to remove with a brush or pool cleaner, try using a pumice stone to get rid of the biggest deposits, and go over the stained area again with the tile cleaner to ensure that its completely clean. Never use tile cleaning products that arent formulated specifically for pools or overly stiff brushes or scrubbers, as these could scratch your tile or lead to cracks in the surface.
  • Its important to get a handle on the problem before it spreads throughout your pool. So, if you are still having trouble with tough stains and buildup after cleaning, you may need to call in a professional pool cleaning company for pressure washing of the area.

    Dealing With Vinyl Liner Stains

    Vinyl pool liners, which are protected by special additives and coatings, can withstand the extremes of sunshine, heat, cold and constant exposure to chemically treated water. However, even the highest quality liner is still subject to staining, discolouration and other unsightly symptoms if proper water balance is not maintained, debris is allowed to remain in the pool and if water treatment chemicals are used improperly.

    Pool professionals are often plagued by black and pink staining, blemishes from discolouration and bleaching, and byproducts commonly known as pool tar. This article will help pool professionals identify the source and cause of various vinyl liner stains, as well as provide tips for removal and how to avoid them in the future.

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    How To Identify Pool Stain Types And Colors:

    • Organic stains: These stains originate from the tannins in leaves, dead algae, plant debris, small animals, or other organic matter. The stain colors range from yellow to brown to black. If the stain lightens from a small application of chlorine on it, the stain is organic in nature.
    • Mineral and metal stains: Too much copper, iron, calcium, or salts can all result in pool staining or marks. Too much copper usually results in blue-green staining, while iron results in red, yellow, or brown stains. Calcium and salts can result in white deposits. To test for metal stains, apply a small amount of vitamin C powder to it. If the stain is from metal, it will fade or disappear.
    • Fading: Vinyl pool liner fading can also be an issue pool owners will face. Fading can occur from the use of pool chemicals or from the sun. Low pH and high chlorine are both common reasons this occurs. Fading is not treatable, unfortunately. However, it can sometimes be prevented by always pre-dissolving granular chlorine in a bucket of water before adding it to the pool.

    Still not sure which type of swimming pool stain you have? Take the guesswork out of stain identification with Jacks Magic Stain ID Kit.

    How Do You Remove Brown Stains From A Gunite Pool

    Ask the Pool Guy: How do I remove copper stains from my vinyl liner from copper algaecide?

    You can try to find an ascorbic acid cleaner at a local pool store and use it to clean the stains, but it cannot be mixed with chlorine, so dechlorinated the pool, or empty and clean it. Always keep in mind there may be another cause to the stains, such as the plaster wearing off and exposing the gunite beneath.

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    Pool Stain Removal 101

    Want to make pool stain removal easier?

    The secret is all in the technique. Keep reading to learn how to remove organic, metal, rust, mineral, and other stains from your pool, the right way.

    Just like ketchup splotches and oil droplets seem to find their way on to every white T-shirt you own, pool stains follow a similar path. At one point or another, no matter how careful you;are, odds are youre going to find one somewhere in your pool maybe along the walls or spread across the shallow end stairs.

    And if youre reading this article, then you probably found a stain and want to remove it. If so, youre on the right track.

    Pool stains;are common and appear for a number of reasons. So they arent necessarily a sign of bad maintenance. Everything from leaves and dirt, to minerals and bodily oils,;can cause pool staining.

    And when stains appear, they range in color, from bright green, red, and blue smears, to;dark brown and red blobs.

    But luckily, removing pool stains is simple when you know what youre looking for. When you can identify a pool stain, removing it becomes much easier.

    And thats what this post is all about.

    So if youre ready to learn how to remove pool stains and prevent them from ever coming back again, keep reading. This post is for you.

    Identify Vinyl Pool Stains

    One advantage of vinyl pool liners is that the slick surface often reduces mineral staining. Its not uncommon to see the pool stains more pronounced on plastic and metal items in the pool, such as on your ladders, steps and pool lights.

    Vinyl liners also can stain in localized areas or spread throughout the pool surfaces. It can be just one small spot, only at the waterline, or on the pool steps. Size, color, location and any behavior of the pool stain can be helpful in identifying the source or cause of the stains.

    Testing your pool water for metals and mineral content can also be helpful to identify pool stains. Test your water for iron, manganese or copper. InTheSwim.com carries copper test strips available in our water test kit department.

    Mineral Pool Stains

    Mineral pool stains can be every color of the rainbow, but a few are more common. Blue-green stains are usually from too much copper in the water. Iron pool staining can be brown, red or a yellow-orange color. Calcium or sodium salts can leave sort of white deposits on your pool liner.

    For stains on a horizontal surface, you can test the surface for mineral staining by using a small amount of acid on the stain. Place a vitamin C tablet on the stain for a short time. You can also use pH decreaser placed into a sock. If the stain lightens considerably, you have a mineral stain on your hands.

    Metal Pool Stains

    Organic Pool Stains

    Chemical Damage

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    Testing The Pool Wateris It Metal Staining Or Algae

    Before taking any action to undergo treatment for metal stains, you need to be certain of its metal staining. Green or black stains might indicate metal stains, but they may also occur due to green or black algae. Do the vitamin C test by using ascorbic acid to determine whether it’s metal staining or not:

  • Hold a vitamin C tablet against a potion of the stain for about 30 seconds.
  • If the stain vanishes or lightens, then it is a metal stain and not algae.
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