Top 9 Ascorbic Acid for Pools – Swimming Pool Stain Removers

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1. Essential Values


4 lbs, Natural Citric Acid Powder Pool Clarifier, Works on Vinyl Liners, Fiberglass, Metals – Removes Rust & Stains Without Harsh Pool Chemicals, Swimming Pool Cleaner & Spa Stain Remover 2pack

Essential Values #ad - Best value pool cleaner – 1 use per 10, 000 gallons. Our blended ascorbic acid pool powder will not alter the chemical inbalance in the water and is safe to use with chlorine and other pool cleaners. Simply follow instructions based on your needs. Works perfectly on vinyl liners, fiberglass & metal surfaces.

Better than pool cleaning tablets – measure the exact amount of pool and spa cleaning powder out easily. Proudly made in the usa! - tried and tested, with thousands of great customer reviews. Suitable for use on pools, 000 gallons of water. Essential values ensures the only the best quality, or your money back! Our pool liner cleaner really works hard on tough stains and grime. One bottle will work up to 20, Our pool cleaner powder works fast to safely remove algae and metal stains. The pool stabilizer fights both specific stained areas problematic water discoloration from leaves, algae and more.

Make your pool perfect again – impress neighbors & friends with your crystal clean pool! Improves surface quality appearances & deeply penetrates long lasting stubborn stains with ease. Safe & natural pool acid powder – swim and bathe in comfort knowing that essential Values pool stain remover does not contain any harsh chemicals. Natural citric acid base is compatible with all pool sanitizing systems. 2 uses per container, 2 containers included, spas and hot tubs.
BrandEssential Values #ad
ManufacturerEssential Values #ad
Weight2 Pounds



25 lb. Pail, Leisure Pool Chlorine Stabilizer CYA 100% Cyanuric Acid

LEISURE POOL & SPA SUPPLY INC. LP #ad - Swimming pool chlorine stabilizer - 100% Cyanuric Acid! Protects the chlorine from the sun's harmful U. V. Rays! increases the life of the chlorine in the swimming pool! Only 1 lb. Per 3, 000 gallons of pool water to provide a stabilizer level of 40 ppm.
ManufacturerLeisure Pool & Spa Supply, Inc. #ad
Height12 Inches
Length12 Inches
Weight25 pounds
Width12 Inches
Part NumberC23248-PL25

3. Bosh Chemical


And Metals, Fiberglass, Bosh Chemical Vanish Pool & Spa Stain Remover 2 Pack 4LBS- Natural Safe Citrus Based, Removes Rust and Other Tough Stains, Works Excellent on Vinyl

Bosh Chemical #ad - Works on fiberglass and vinyl pool surfaces. Highly effective against metal stains- occasionally pools can get excess metals from pool components, heaters, or piping.

Completely safe for your pool, produced from citrus by-products. You may choose to mildly brush the surface for heavier stains. Our formula easily dissolves the toughest rust and metal stains from your pool with minimum effort. Fast easy and safe use--naturally remove stains from pool linings and underwater surfaces without scrubbing. Treats up to 20, 000 gallon of water!!! Simple to apply- simply pour vanish pool stain remover into the pool around the stained area and watch the stains disappear.
BrandBosh Chemical #ad
ManufacturerBosh Chemical #ad
Weight4 Pounds

4. Natural Chemistry


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

Natural Chemistry #ad - 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.
BrandNatural Chemistry #ad
ManufacturerNatural Chemistry #ad
Height3 Inches
Length6.5 Inches
Weight1.74 Pounds
Width3 Inches
Part Number7400

5. Purity Pool


Purity Pool OS Out Spot Stain Remover

Purity Pool #ad - Gentle application of acid is much safer on the pool surface than other stain removal methods. Handcrafted in the usa with pride. Small amount of acid used will not affect pool chemistry. Fast and easy with no setup. Since the pad is just for applying the acid and not for scrubbing, will last years when used correctly. Fast and easy with no setup. Gentle application of acid is much safer on the pool surface than other stain removal methods. Small amount of acid used will not affect pool chemistry.
BrandPurity Pool #ad
ManufacturerPurity Pool #ad
Height17.15 Inches
Length16.75 Inches
Width1.75 Inches
Part NumberOS
WarrantyManufacturing defects

6. HTH


1 lb Pack of 12, HTH 52026 Super Shock Treatment Swimming Pool Chlorine Cleaner

HTH #ad - Features: increases chlorine levels; kills and prevents bacteria and algae; Keeps water clear; See results in 24 hours; 1 bag treats 13, 500 gallons; Won’t fade vinyl pool liners.

Compatibility: effective for all swimming pool types including pools with liners and Gunite pools, and saltwater pool systems. Includes: twelve 1-lb bags of shock treatment for your swimming pool. Benefits: increases the chlorine level in swimming pools to kill bacteria and algae to keep your pool water clear and ready for fun all season long. Use: apply directly to pool water as needed; Test pool water and shock weekly to keep free available chlorine levels between 1 and 4ppm.
BrandHTH #ad
ManufacturerInnovative Water Care #ad
Height10 Inches
Length7 Inches
Weight12 Pounds
Width10.5 Inches
Part Number52026



Case 4 Gallons, Swimming Pool pH Reducer Balancer | Buffered, Low-Fume, Acid Blue Muriatic Acid by CPDI

CPDI #ad - Fresh acid has higher potency Always Buy Direct From Manufacturer CPDI. Vapor reduction technology reduces up to 90% of harmful vapors compared to standard muriatic acid. Brightens concrete & masonry suraces. Controls the ph level of water in swimming pools & hot tubs.
BrandCPDI #ad
ManufacturerChampion Packaging & Distribution, Inc. #ad
Height12 Inches
Length4 Inches
Width6 Inches
Part NumberCHP520-9

8. Periodic Products


Periodic Products CUL-1MO Culator/Metal Eliminator and Stain Preventer for Swimming Pools

Periodic Products #ad - The only way to rapidly remove and eliminate: Copper, Nickel, Manganese, Iron, Cobalt, And Silver From Pool And Spa Water. Culator metal eliminator And Stain Preventer Acts Like A Sponge. No assembly Required. 1 treatment treats up To 20, 000 Gallons.
BrandPeriodic Products #ad
ManufacturerPeriodic Products #ad
Height1 Inches
Length4 Inches
Weight1 Pounds
Width4 Inches
Part NumberCUL-1MO

9. LeisureQuip


BioGuard Erase Iron Stain Remover for Swimming Pools with LeisureQuip ScumBoat Scum Absorber and LeisureQuip Pool Care Log Book

LeisureQuip #ad - Granular formula can be added directly to pool water over the trouble areas, tile, and is compatible with plaster, and vinyl surfaces to accommodate virtually all pools. Leisurequip scumboat floating oil absorber soaks up lotions, makeup, and all yucky things that make your pool or spa dirty.

Leisurequip pool care log book is a handy resource for pool owners which includes an easy-to-follow pool maintenance checklist, pool troubleshooting guides, chemical dosage charts, as well as a pool care log to keep track of your pool maintenance. Contains: bioguard erase iron stain remover, LeisureQuip ScumBoat Floating Scum Absorber, and LeisureQuip Pool Care Log Book.

Bioguard erase iron stain remover is specifically formulated to combat iron-based stains, restoring your pool surfaces to their former beauty. Highly effective iron stain remover for all types of swimming pools. One bottle of erase iron stain Remover treats u to 10, 000 gallons of water.
BrandLeisureQuip #ad
ManufacturerLeisureQuip #ad
Height3 Inches
Length9.5 Inches
Width3 Inches
Part Number23733BIO