Top 10 Best swimming pool stain remover in 2026

Last Updated - 6/24/2026

🏆Best Choice

LEISURE TIME

Leisure Time D Metal Gon for Spas and Hot Tubs, Powerful Water Treatment Solution, 16 Ounce

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•BENEFITS: Concentrated formula prevents iron and other metal buildup on your hot tub or spa; Prevents stains caused by iron or other metals
•USE: When combined with Defender, this spa care chemical helps prevent scale formation
•COMPATIBILITY: Chlorine, bromine, ozone and biguanide sanitizers
•LONG LASTING: You only need to use it once at the fill or refill with new spa water
•INCLUDES: One 16-oz bottle of Leisure Time Metal Gon

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$12.50

$19.99

-37%

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LEISURE TIME

Leisure Time 45006A Spa & Hot Tub Test Strips for Chlorine and Bromine

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•EASY TESTING: Leisure Time 45006A Spa & Hot Tub Test Strips provide a simple and convenient way to test the chlorine or bromine level in your spa or hot tub.
•ACCURATE RESULTS: Each bottle of test strips features a chart on the back, allowing you to quickly and easily compare your results to the recommended levels for Free Chlorine, Bromine, Alkalinity, pH, and Total Hardness.
•QUICK & EFFICIENT: Simply dip one test strip in your spa or hot tub water, wait a few seconds, and compare the color of the strip to the color chart on the bottle to get fast and reliable results.
•MULTIPLE TESTS: With 50 test strips in each bottle, you'll have plenty of tests to keep your spa or hot tub at its best all season long.
•UNIVERSAL COMPATIBILITY: Suitable for use with all types of spas and hot tubs, these test strips are an essential tool for keeping your water clean, clear, and healthy.

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$13.99

$14.99

-7%

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WWD POOL

WWD POOL Swimming Pool Spa Water Chemical Test Kit for Chlorine and Ph Test (2 Way Test Kit)

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•2 Way Pool Water Test Kit For Test For OTO, CL, and PH Level
•Includes clear view water testing unit with accurate measuring scale and integrated color for easy reading chemical leaves
•Includes one 1/2-ounce bottle chlorine test solution, one 1/2-ounce bottle pH test solution, plastic tester and carrying case
•Easy to use, just fill each test tube with pool water, add 4 drops of the proper solution into each test tube, put the test tube caps on, shake the testing block then check the Chloride, Bromine and pH readings.
•Please use it before expire date which printed on the back of the case.

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$12.99

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LEISURE TIME

LEISURE TIME 45010A Test Strips Chemical Tester for Spas and Hot Tubs

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•BENEFITS: Helps measure the chemicals in your spa water; tests for pH, alkalinity, calcium hardness, and chlorine
•USE: Immerse the test strip for 2 seconds, remove with the pads facing up, shake once to remove excess water, and read immediately
•COMPATIBILITY: Chlorine and ozone sanitizers in hot tub and spa systems
•FEATURES: Fast and simple; easy-to-read chart on bottle; very accurate
•INCLUDES: 50 testing strips

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$18.76

$23.99

-22%

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Pool Mate

Pool Mate 1-Quart 2-Pack Concentrated Metal Out Stain and Mineral Inhibitor, Pool Metal Remover, Stain Remover, Made in USA

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•1 quart per 10,000 gallons of water
•Helps remove and prevent calcium, cobalt, copper, iron, lead, manganese, nickel and silver
•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

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$31.71

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Newpol

Newpol 7-in-1 Pool Test Strips, 100 Strips Water Testing for Swimming Pool, Hot Tub and Spa

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•NEWPOL (100strips) 7-IN-1 POOL TEST: each test strip include 7 testing range, Hardness , Free Chlorine, Bromine, Total Chlorine, Cyanuric Acid,Total Alkalinity and pH. Check your pool water quality any time with just one strip, so easy.
•Super fast & Accurate: Dip the test strip into the water sample for 2 seconds, and hold the strip horizontally for 30 seconds to get an accurate reading, then compare with color chart. Boxed colors = ideal range. Read results within next 30 seconds for best result.
•Application & Regularity : Suitable for standard swimming pool, aboveground pool, min pool, inflatable pool, spa, hot tub, and similar water testing. To keep your pool water crystal clean and safe, please test your pool water quality twice a week, or more, depends on your swimming schedule.
•Storage: Store in dry condition, keep away from direct sunlight and mositure; always keep the cap tight on strip container in between uses and always leave dry bag in the bottle; Use strips before the expiry date; discard the sample strip properly after you read the testing result.
•(Service & Guarantee) --- 24 hours after sale service, one year free warranty, any questions for the product, please do not hesitate to contact us via Amazon.

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$7.99

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WWD POOL

WWD POOL Swimming Pool Spa Water Chemical Test Kit for Chlorine and Ph Test (Refill Only)

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•The 2 standard testing solutions that are used for measuring and maintaining the proper Chlorine, Bromine and pH chemical levels in swimming pools and spas
•1/2oz bottle of OTO Chlorine Test Solution
•1/2oz bottle of Phenol Red pH Test Solution

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$8.99

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LEISURE TIME

Leisure Time 45005A Spa & Hot Tub Test Strips 4-Way Bromine Testers, 50 ct

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•BENEFITS: Helps you know any chemical imbalances in your spa or hot tub water so you can treat it appropriately
•USE: Tests for pH, alkalinity, calcium hardness, and bromine or chlorine
•COMPATIBILITY: Bromine or ozone systems
•SIMPLE TO USE: Immerse the test strip in the water for 2 seconds, remove and shake off excess water; Easy to read immediately
•INCLUDES: One container of 50 testing strips

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$18.29

$23.99

-24%

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Newpol

Newpol 8-in-1 Pool Test Strips, 100 Strips Water Testing for Swimming Pool, Hot Tub and SPA

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•NEWPOL (100strips) 8-IN-1 POOL TEST: each test strip include 8 testing range, Hardness , Free Chlorine, Total Chlorine, Bromine, pH, Total Alkalinity, Cyanuric Acid and Salt. Check your pool water quality any time with just one strip, so easy.
•Super fast & Accurate: Dip the test strip into the water sample for 2 seconds, and hold the strip horizontally for 30 seconds to get an accurate reading, then compare with color chart. Boxed colors = ideal range. Read results within next 30 seconds for best result.
•Application & Regularity : Suitable for standard swimming pool, aboveground pool, min pool, inflatable pool, spa, hot tub, and similar water testing. To keep your pool water crystal clean and safe, please test your pool water quality twice a week, or more, depends on your swimming schedule.
•Storage: Store in dry condition, keep away from direct sunlight and mositure; always keep the cap tight on strip container in between uses and always leave dry bag in the bottle; Use strips before the expiry date; discard the sample strip properly after you read the testing result.
•(Service & Guarantee) --- 24 hours after sale service, one year free warranty, any questions for the product, please do not hesitate to contact us via Amazon.

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$8.99

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Carethetic

Carethetic Pool Test Strips - 7-in-1 Pool Test Kit, 125 Count - Spa, Hot Tub & Swimming Pool Water Testing for Hardness, Chlorine, Bromine, pH, Alkalinity, Cyanuric Acid - Fast, Accurate Results

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•125 STRIPS FOR TOTAL POOL PEACE OF MIND - Get 125 premium pool test strips in every bottle—enough for months of testing your swimming pool, spa, hot tub, or jacuzzi. Monitor 7 key parameters at once: Total Hardness, Total Chlorine, Free Chlorine, Bromine, pH, Total Alkalinity, and Cyanuric Acid.
•QUICK, EASY, AND FOOLPROOF TESTING - Dip a strip in water for 2 seconds, remove, and shake off excess. Compare to the clear, fade-resistant color chart on the bottle within 30 seconds. Ideal ranges are marked for hassle-free results—no guesswork needed!
•HIGHLY ACCURATE & RELIABLE RESULTS - Made with top-quality, sensitive materials and non-bleeding pads that won’t fall off. Designed by experts for precision, these strips ensure you can trust your water quality readings every time.
•VERSATILE FOR ALL WATER TYPES - Perfect for swimming pools, hot tubs, spas, jacuzzis, and more. Test at least twice weekly (as experts recommend) to keep your water safe, balanced, and crystal-clear all season long.
•LONG-LASTING & WELL-PRESERVED - Packaged in a sturdy, sealed bottle for up to 1-year shelf life when stored in a cool, dark place. Use within 90 days of opening for peak accuracy. Carethetic keeps your water testing simple and dependable!

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$7.99

$9.99

-20%

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