How To Get Stains Out Of Swimming Pool

Types of Stains in Swimming Pools

When it comes to maintaining a swimming pool, one of the common challenges that pool owners face is dealing with stains. Stains can be caused by various factors, including organic and inorganic substances. In this article, we will discuss the different types of stains found in swimming pools and how to identify and remove them effectively.

Organic Stains

Organic stains are those caused by living organisms or natural materials. The most common organic stains found in swimming pools include algae stains, leaves and plant stains, and rust stains.

Algae Stains

Algae is a microscopic organism that thrives in warm and poorly maintained water environments. It can quickly spread throughout your pool if not properly addressed. Algae typically appear as greenish-brown spots on pool surfaces.

To remove algae stains from your pool:

  1. Brushing: Use a stiff brush to scrub the affected areas vigorously.
  2. Vacuuming: After brushing, use a vacuum cleaner specifically designed for pools to remove any loosened algae debris.
  3. Shock Treatment: Add an appropriate amount of shock treatment chemical according to the product instructions.
  4. Algaecide Treatment: Apply algaecide directly to the affected areas as directed on the product label.

Leaves and Plant Stains

Leaves and other plant matter can leave unsightly brown or greenish-brown stains on your pool surfaces over time.

To remove leaves and plant stain from your pool:

  1. Skimming and Netting: Use a leaf rake or skimmer net regularly to skim off any floating debris.
  2. Brushing: Gently brush stained areas using a soft-bristled brush.
    3.Shock Treatment: Adjust chlorine levels by adding shock treatment chemicals following manufacturer guidelines.

– Q: How often should I perform shock treatments?
– A:

Removing Inorganic Stains

<h4>Metal Stains</h4>
  <p>Ascorbic Acid Treatment: Apply a solution of ascorbic acid to the affected areas and scrub with a brush. Rinse thoroughly after treatment.

Preventing Stains in Swimming Pools


In conclusion, it is essential for pool owners to understand the different types of stains that can occur in their swimming pools and how to effectively identify and remove them. By following proper maintenance practices, such as regular brushing and vacuuming, maintaining proper water balance, using pool covers, and applying appropriate chemical treatments, you can prevent or minimize stains from occurring in your pool. Remember to consult a professional if you are unsure about any stain removal procedures or if stubborn stains persist.


Q: Can I use household cleaning products to remove stains from my pool?
A: It is not recommended to use household cleaning products on your pool surfaces as they may contain chemicals that can damage the material or alter the water chemistry.

Q: How often should I test my pool water for chemical levels?

Q: What should I do if none of the stain removal methods work?

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Copper: A type of metal that can cause stains in swimming pools.

Berries: Small fruits that can leave stains in swimming pool water if they fall into the pool.

Copper Stains: Stains caused by the presence of copper in the pool water.

Option: A choice or alternative method for removing stains from a swimming pool.

Type of Stain: The specific category or nature of a stain, such as organic matter, calcium deposits, or metallic stains.

Pool Chemicals: Substances used to treat and maintain the cleanliness of a swimming pool.

Calcium: A mineral that can form deposits and scaling on pool surfaces if present in high amounts.

Organic Matter: Material derived from living organisms, such as leaves or algae, which can cause staining in pools if not properly removed.

Tile: Ceramic or glass covering used on the walls or floor of a swimming pool. Can be prone to staining if not cleaned regularly.

Purple Stains: Discoloration often caused by metals like copper or iron in the water interacting with certain chemicals and minerals present in pools.

Vitamin C Tablet/Powder/Granular Vitamin C/Ascorbic Acid/Rust-Preventing Commercial Enzyme : Various forms/treatments that contain Vitamin C (ascorbic acid) which is effective at removing metal stains from pools

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Process : The series of steps required to remove stains from a swimming pool effectively

Pool Cleaner/Automatic Pool Vacuum : Equipment designed to automatically clean dirt and debris from a swimming pool’s floor and walls

Pool Floor/Pool Walls : Different parts of the interior surface area within a swimming ppol where different types/stains may appear/may need cleaning differently

Types Of Pools (Concrete/Fiberglass/Vinyl) : Different construction materials commonly used for building residential swimming pools each requiring different care/cleaning methods
Muriatic Acid/Diphosphonic Acid/Suncoast Iron & Cobalt : Acidic substances used for acid washing and stain removal in swimming pools, especially effective for metal stains

Iron Stains: Stains caused by the presence of iron in the pool water.

Stain Remover: A product or chemical designed to remove stains from swimming pools.

Organic Pool Stains: Stains caused by organic matter, such as leaves or algae, present in the pool water.

Vinyl Pools/Vinyl Liner Pool: Swimming pools with a vinyl liner as their interior surface. May require specific cleaning methods/products to prevent damage to the liner.

Pool Filter: Equipment that removes debris and impurities from pool water. Important for maintaining clean and clear water free of staining materials.

Common Pool Stains: Frequently encountered types of stains found in swimming pools, such as metal stains or organic matter stains.

Pool Professional/Pool Service Professional/Professional Fiberglass Pool Maintenance/Regular maintenance : Trained individuals who provide services related to maintaining and cleaning swimming pools professionally.
Dirty Pool/Poorly maintained/difficult/stubborn/pool care/proper dilution level/improper chemical maintenance :
Terms describing a poorly maintained swimming pool that may have various types of stubborn/more difficult-to-remove/stubborn/scale/corrosion/deposits /staining issues requiring extra care/treatment
Plaster Pool : A type of concrete-based swimming pool with plaster coating on its interior surface

Swimming Pool Stains/Staining In Pools/Stain On The Surfaces Of The Swimming Pools/Worst pool staining/Ugly/black/blue/reddish-brown/greenish-brown colored/Metallic/Berry Bushes/Iron Pipes/Rust Spots/Copper Scaling/Tiles/Fiberglass Surface/Leaf Debris/Efflorescence From Tile/Liner Pools/Algae spots – Various terms referring specifically to different kinds/types/colors/sources/nature/appearance of stains found in swimming pools

Types Of Pool Stains: The different categories or sources of stains commonly found in swimming pools.

Metal Level/Water For Metals/Amounts Of Copper/Iron/Calcium : Refers to the concentration or presence of metals like copper, iron, and calcium in pool water. High levels can lead to staining.

Scale: A hard deposit that forms on surfaces due to the buildup of minerals like calcium carbonate. Can cause discoloration and roughness if not removed.

Brass Pipes/Corroded Iron Pipes/Copper Piping : Types of plumbing materials used for pool systems that may contribute to staining if corroded or damaged.

Harsh Chemicals/Acidic Solutions : Strong chemicals with high acidity that may be required for certain stain removal processes but need careful handling as they can damage pool surfaces if not used properly

Concrete Pool/Fiberglass Pool/Vinyl Liner Pool/Liner Pools : Different types/materials construction methods used for building residential swimming pools each requiring different care/cleaning methods

Pool Equipment: Tools and machinery used for cleaning and maintaining a swimming pool effectively, including vacuum cleaners, brushes, nets, etc.

Automatic Pool Robotic Cleaner/Vacuum : An automated device designed to clean a swimming pool without manual effort by using suction power or robotic technology

Clean Pool/Pooled Cleanliness/Ideal Water Levels/Proper Dilution Level/The pound-of-cure-an-ounce-of-prevention mentality/Ideal Range/Maintenance Chemicals – Terms referring generally/normally/apropos/properly maintained/pH-balanced /safe-level/range/stain-free/clean/swim-ready water conditions/water quality
Magic Blue Stuff/Efflorescence from Tile List Of Options/Natural Stain Remover/Product Label Instructions/Berry Trees/Berry Bushes/Abrasive Scrubs/List Option – Miscellaneous terms related to alternative methods or products for removing stains from swimming pools

City Water/Leaf Stains/Copper Scaling – Terms related to potential sources/causes of staining in pool water including minerals, leaves, and other impurities

Liquid Test Kit/Water Treatments/Ideal Levels/Pound Of Cure/Extra Scrub : Tools/methods/products used for testing and maintaining proper chemical balance and cleanliness of the pool water.

Colored Plaster/Fiberglass Pool Safe Scaling/Liner Pools/Stains In Plaster Pools/Vinyl Pool Owners: Specific terms related to different types of swimming pools that may require specific cleaning/maintenance approaches.

Future Pool Stains/Metal Stain Remover : References to preventing future stains by using appropriate maintenance/cleaning techniques.

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Mike Hunter

Mike is the owner of the local pool shop. He's been in the business for over 20 years and knows everything there is to know about pools. He's always happy to help his customers with whatever they need, whether it's advice on pool maintenance or choosing the right chemicals. He's also a bit of a pool expert, and is always happy to share his knowledge with anyone who's interested.

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