8 Top-rated Stain Removers for Pool

It can be frustrating if you got a stubborn stain in your swimming pool. The truth is, you can be super vigilant about maintenance, and your pool can still end up with stains.

Staining commonly occurs on pool and spa surfaces over time as dissolved minerals precipitate out of solution in the presence of high pH levels or reactions with excess chlorine oxidizer. Organic matter such as dead blackspot algae, leaves and debris can also mark pool surfaces and be hardened by alkaline minerals such as calcium.

So how to get rid of stains in your pool? All you need is a good pool stain remover.

In other words, pool stain remover is sequestering agent, which is used to lock-up trace metals from the water and keep them in solution, so they don’t stain your pool surfaces.

The better news is, you can take steps to prevent future pool stains. The key is knowing what caused the stains in the first place. Remember, stains in your pool are like stains on clothing; with the right advice and right product, you can get just about anything out!

Sometimes you need pool liner stain remover; other times, a simple shock treatment will remove discoloration. The solution all depends on the cause of the stain.

The intention of this article is to present the best 8 stain removers for your pool. Keep reading the following guide to learn more about these products, which can help you to keep your pool sparkly clean!


1. Essential Values- Swimming Pool & Spa Stain Remover (2 LBS)

Instead of using harsh chemicals that spoil your pool and bathtubs, start using Essential Values’ stain remover made from the special natural formula. This citric acid-based cleaning powder removes stubborn stains and rust without damaging the surface of your pool. Our stain remover will not only clean but also improve the surface of your tub or the pool. Works perfectly on Vinyl liners, Fiberglass, and even metal surfaces.


- BEST VALUE – 1 Use Per 10,000 Gallons of Water (2 Uses Per Container), Our 2 Pound Engineered Powder Can’t Be Beat On Price! We Have Developed a Natural Fast Acting Remedy to Eliminate Stains for Pools, Spa’s & Even Hot Tubs. One Bottle Will Work Up To 20,000 GAL Of Water!

- Impress Your Neighbors And Friends Alike With Your Like-New Appearance Of Your Aged Swimming Pool! Improves Surface Quality Appearances & Deeply Penetrates Long Lasting Stubborn Stains With Ease

- No harsh chemicals, Stay Confident In Your Pool Knowing That Our Pool Stain Remover Does Not Use Any Harsh Chemicals. We Bring Convenience Back To Standard Maintenance, Our Special Natural Formula Does Not Alter Chemical Balances

- Easy to apply– Citric Acid Base, Compatible With All Sanitizing Systems, Works Perfect On Vinyl Liners, Fiberglass & Even Metal Surfaces. Simply Follow the Instructions Based On Your Needs – Fights Both Specific Stained Areas & Problematic Water Discoloration


2. Periodic Products Cul-1mo Culator/metal Eliminator And Stain Preventer For Swimm

CuLator Metal Remover and Stain Preventer for Pools and Spas is the only way to immediately and permanently remove metals, such as copper, iron, lead, silver, nickel, manganese, and cobalt from salt and fresh water pools. This non-toxic, biodegradable metal remover does not interact with any other pool chemicals, metal based algaecides and mineral-based water purification systems. CuLator is ideal for metal removal during the active swim season and as a maintenance pack to lower TDS and keep pool and spa water metal free. Simply place one cloth bag in the skimmer basket to remove metals and prevent stains. As the water passes over the bag, metals attach to the CuLator and remain inside the bag. Once metals are removed the bag changes color; an included metal identification chart will identify which color to look for. When this has occurred, throw the bag away and the metals are permanently removed from the water. Always keep a clean bag in your skimmer basket to maintain metal free pool water.


- The only way to rapidly remove and eliminate: copper, iron, manganese, cobalt, nickel, and silver from pool and spa water

- 1 treatment treats up to 20,000 gallons

- CuLator Metal Eliminator and Stain Preventer acts like a sponge


3. Pool Mate 1-2550 Metal Out Swimming Pool Mineral Remover, 1-Pack

Pool Mate Metal Out is especially formulated to help prevent discoloration of pool water due to iron, calcium, magnesium, copper and other minerals and metals. This product is particularly ideal for pools using well water or in regions where heavy metals are naturally present in the water. With regular use, Pool Mate Metal Out is ideal for controlling general stains and helps maintain a sparkling clean pool. This product helps prevent discoloration of pool water due to iron, calcium, manganese, copper and other metals and minerals which may be present in the water supply. This product is an excellent general purpose sequestrant which helps protect plumbing and pool walls from rust, stain and scale. It should be used for all pool openings and closings and throughout the season as needed.


- This product helps prevent discoloration of pool water due to iron, calcium, manganese, copper and other metals and minerals which may be present in the water supply

- This product is an excellent general purpose sequestrant which helps protect plumbing and pool walls from rust, stain and scale

- It should be used for all pool openings and closings and throughout the season as needed

- 1 quart per 10,000 gallons


4. Purity Pool OS Out Spot Stain Remover

Purity Pool is a family business founded in 1961 by an experienced pool service professional. Since all Purity Pool Products were designed first for professional use, durability and efficiency have always been top priorities. The Out Spot is a self-contained underwater stain remover. The cup holds about a cup of muriatic acid. Once filled and connected to a standard pool maintenance pole, the Out Spot can be lowered down to the pool surface and placed on top of a stain. Since acid is heavier than water, the acid seeps through the pad (slowly diluting, so go for the worst stains first!) over a period of about 20 minutes. Most stains are gone in seconds!


- Fast and easy with no setup

- Small amount of acid used will not affect pool chemistry

- Gentle application of acid is much safer on the pool surface than other stain removal methods

- Fast and easy with no setup

- Small amount of acid used will not affect pool chemistry

- Gentle application of acid is much safer on the pool surface than other stain removal methods

- Since the pad is just for applying the acid and not for scrubbing, will last years when used correctly

- Handcrafted in the usa with pride


5. In The Swim Stain Away Pool Stain Remover

In The Swim Stain Away Pool Stain Remover prevents and removes mineral stains caused by iron, copper, and magnesium. It also prevents the build-up of scale around the water line and in the plumbing. When minerals oxidize, they discolor. After discoloration, they can leave a stain if the mineral settles on the interior. Iron will become red-brown; copper will turn purple-black; and magnesium is pink-purple. Stain away is a must for areas with heavy iron and/or copper content or well water. Initial Dosage: 15 oz. per 10,000 gallons. A double dose is suggested for stubborn stains.


- Suggest for use with well water

- Chelates copper and iron

- Safe in all pool interior types

- Active Ingredient: Hydroxyethylidene Diphosphonic Acid (HEDP) 13 - 15%

- Initial Dosage: 15 oz. per 10,000 gallons


6. McGrayel 20064 Scaletec Plus Pool Surface and Tile Descaler Iron Stain Remover

Scaletec Plus is the first pourable surface, tile, and equipment descalers that works without acids. Prevents and removes stains especially iron. High performance swimming pool calcium descaler, iron stain, and scum remover-preventative. First pourable product that removes hard water buildup throughout pool surfaces, tiles, and all equipment without scrubbing and acids. Pour directly into pool only. Highly effective in preventing iron, copper, and manganese stains. Powerful Synertec formula provides long lasting, affordable protection year-round with just small monthly application.


- Fast cleanup results. Pool restoration in just 2 to 4 weeks

- Superior winter surface descaler-stain preventative during non swimming season

- Descales pool filter, heater, water auto-leveler and solar units

- Non acidic, non-staining, low phosphates, and enviro-safe components

- Removes calcium buildup without scrubbing, acids and pool draining


7. Natural Chemistry 07400 Stain Free Pool Stain Remover, 1-3/4 Pounds

Stain Free is an all-natural stain remover. It's like Vitamin C for your pool! Stain free is an ascorbic acid product, similar to everyday Vitamin C. It is ideal for treating staining to vinyl pool liners and fiberglass pool surfaces. A safe and people friendly alternative to harsh chemicals typically used to treat stains. The bonus is that Stain free does not create any residual phosphates in your pool water, making it the perfect stain-fighter for use with Natural Chemistry's PHOSfree program


- Use with Natural Chemistry's Metal-Free for the ultimate stain-fighting combination

- Citric acid product ideal for treating stains to vinyl liner and fiberglass pool surfaces

- Recommended Dosage is 1 pound per 10,000 gallons; does not create any residual phosphates in your pool water


8. IMPRESA [4 Pack] Pool Pumice Stone for Cleaning Tiles and Hard Water Stains

Struggling to Rid Your Pool Tiles of Hard Water Build-Up and Limescale?Mineral deposits and calcium build-up can leave your pool looking dirty and grimy.There's no need for acid and other harsh chemicals as a hard water cleaner.In fact, acid isn't very effective against the more resilient calcium silicate build-up.Have no fear! The pool tile stone is an easy and effective solution. It only takes a little gentle scrubbing to rid your pool of this pesky grit and grime. Pumice stones are the best option as a limescale remover and tile cleaner for pool.


- Comfortable Handle for Safe and Easy Use — Using the pumice stone with handle protects your hands from scraping and chafing after extended use of the heavy duty pumice stone. The pumice bar is easy to hold and acts as a pool tile scrubber

- Get Rid of Hard Water and Scaling on Your Tiles — Your pumice cleaning stone will attack limescale, calcium, hard water stains, and more to keep your pool clean. The pumice stick also works as an effective rust remover and pool descaler so you can keep your pool clean and looking brand new

- Cleans Quickly and Efficiently — The pumice scouring stick fights off tough-to-tackle stains and build-up and requires almost no effort to use. To use as a pool cleaning stone, simply wet your stick of pumice and the surface you plan to clean and rub gently until clean

- Defeat Mineral Build-Up Without Harsh Chemicals — The pool tile pumice stone only needs water to do an effective job. You can forego the acid and polish off both calcium carbonate and silicate by using pumice as a pool calcium remover

- 4 Pack With More Pumice — This value pack comes with 4 pool stain remover pumice stones, so you'll always have one on hand. With more pumice than competitors, our stain erasers will last longer. Each pumice stone for cleaning is made with an extra-long handle to give you more range and control


If you have any other questions about pool and spa products please do let us know - we are here to help!

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