Top 10 Best pool leak dye in 2026

Last Updated - 6/18/2026

🏆Best Choice

Escentile

Pool Leak Detection Dye Kit - with 2 Precision Applicators - Made in USA - Superior Long Lasting UV Pool Dye Easily Locates Leaks - for All Pool, Spa, & Hot Tub Types - 8 OZ Fluorescent Yellow

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•Easily Identify & Locate Leaks - 75+ tests per kit! This pool leak detection kit delivers a High-Contrast UV dye that glows brightly in sunlight and under UV light. It stands out against light and dark surfaces, making it just as effective as traditional blue dyes on light-colored backgrounds. This superior pool dye formula holds together underwater, ensuring easy & accurate leak detection
•[4 pcs] Precision Applicator Kit - Easily test for leaks in any area of your pool, spa, or hot tub with this 4-piece kit. Includes 2 (10ml) applicators and 2 versatile 6” locking tips. The straight tip reduces water disturbance for accurate testing, while the angled tip reaches tight spots behind plumbing and jets. Common leak locations include surface cracks, skimmer baskets, light niches, jets, and missing grout
•Family-Safe & Works with All Pools/Spas - This biodegradable pool leak dye is safe for families and the environment. It performs in chlorine and saltwater and is compatible with any swimming pool/hot tub type: inground, above-ground, fiberglass, and vinyl lined. An ideal addition to any pool leak repair kit for precise leak detection
•How to Use - Fill the pool or spa to its normal level, turn off the pumps, and wait 10 minutes. Insert the applicator tip into the no-spill flip top to fill, then position the tip ½” from the suspected leak and dispense 2-3 ml of pool dye in a ribbon. The water tracing dye will flow toward the leak, if present, indicating its location. Never pour dye directly into the pool; always use the applicator tool for best results
•Proudly Made in the USA - Manufactured with top-quality materials, our pool leak detection dye kit is proudly made in the USA. We’re a family-owned small business dedicated to delivering quality and reliability you can trust. Enjoy superior support and expertise with our industry-leading products

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$14.99

$18.99

-21%

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Escentile

Pool Leak Detection Dye Kit - with 2 Precision Applicators - Made in USA - Superior Long Lasting Pool Dye Easily Locates Leaks - for All Pool, Spa, & Hot Tub Types - 8 OZ Vibrant Blue

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•Easily Identify & Locate Leaks – 75+ Tests Per Kit - This pool leak detection dye kit delivers a vibrant blue color that contrasts sharply against light-colored surfaces, making it ideal for inground pools, above-ground pools, and hot tubs with white or light finishes. The superior formula holds together underwater, making it easy to trace water flow and pinpoint leaks with accuracy
•[4 pcs] Precision Applicator Kit - Easily test for leaks in any area of your pool, spa, or hot tub with this 4-piece kit. Includes 2 (10ml) applicators and 2 versatile 6” locking tips. The straight tip reduces water disturbance for accurate testing, while the angled tip reaches tight spots behind plumbing and jets. Common leak locations include surface cracks, skimmer baskets, light niches, jets, and missing grout
•Family-Safe & Works with All Pools/Spas - This biodegradable pool leak dye is safe for families and the environment. It performs in chlorine and saltwater and is compatible with any swimming pool/hot tub type: inground, above-ground, fiberglass, and vinyl lined. An ideal addition to any pool leak repair kit for precise leak detection
•How to Use - Fill the pool or spa to its normal level, turn off the pumps, and wait 10 minutes. Insert the applicator tip into the no-spill flip top to fill, then position the tip ½” from the suspected leak and dispense 2-3 ml of pool dye in a ribbon. The water tracing dye will flow toward the leak, if present, indicating its location. Never pour dye directly into the pool; always use the applicator tool for best results
•Proudly Made in the USA - Manufactured with top-quality materials, our pool leak detection dye kit is proudly made in the USA. We’re a family-owned small business dedicated to delivering quality and reliability you can trust. Enjoy superior support and expertise with our industry-leading products

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$14.99

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Leakmaster

Leakmaster Pool Leak Detection Kit – 8 oz Blue Dye with Reusable Syringe – High-Visibility Leak Finder for Pools, Hot Tubs & Spas – 40+ Refills– Professional Water Tracing Tool

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•Pinpoint Leaks with Precision - Symptoms of a pool leak may include rising water bills, chemical imbalance, algae blooms, or cracks in structure. Our DIY leak detection kit helps you quickly identify the exact source of the leak in your in-ground pool, above-ground pool, or hot tub for faster repairs.
•High-Visibility Dye for Easy Detection - Formulated with ultra-saturated color, our dye stays intact underwater and makes even small or slow-moving leaks visible. Dark blue dye contrasts with light backgrounds, while fluorescent yellow is ideal for dark surfaces or low-light conditions.
•Refillable Syringe - Up to 40 Refills - Includes a prefilled 6ml syringe with precision extension straw for targeted application, plus an 8 oz refill bottle for up to 40 uses. Apply dye directly at the suspected site for accurate, repeatable testing.
•Simple, Step-by-Step Use - Fill pool to normal level and turn off circulation. Discharge a small ribbon of dye about ¼ inch from the suspected leak. If a leak is present, the dye will visibly flow toward the leak site. Clean surfaces beforehand to prevent debris from masking results.
•Professional-Grade Leak Solutions by Anderson - Leakmaster by Anderson offers trusted tools used by professionals for pools, spas, and hot tubs. Pair this kit with our full line of repair products including sealants, epoxies, and detection accessories - Made in the USA for proven reliability.

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$11.57

$14.99

-23%

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Bluewater Chemgroup

Green Tracing Dye - Highly Visible Concentrated Fluorescent Leak Detection Dye - 1 Gallon

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•Highly concentrated fluorescent water tracing and leak detection dye
•Highly visible formulation for a wide array of applications
•Treats up to 12,000 gallons of water
•Great for septic system analysis, flow mapping, pollution studies, and plumbing tracing to name a few
•Proudly made in the USA with 100%

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$34.99

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Bluewater Chemgroup

Concentrated Red Tracer Dye - Highly Concentrated Fluorescent Water Tracing & Leak Detection Dye - One Gallon (128 Ounces)

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•Highly concentrated fluorescent water tracing and leak detection dye
•Our high concentration produces a sharp color for superior visibility across various conditions
•Treats up to 12,000 gallons of water
•Great for septic system analysis, flow mapping, pollution studies, and plumbing tracing to name a few
•Proudly made in the USA

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$31.99

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LeakMaster

Pool Dye Leak Detection Kit | Fluorescent Yellow Pool Dye Syringe & Refill Bottle | Solves #1 Complaint DIYers (Yellow)

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•Trusted Pool Leak Finder - Identify the precise location of structural pool leaks in your system
•Precision - 6” plastic needle allows for precise dye placement without creating unwanted water currents
•Professional Grade: Concentrated dye holds together underwater - Longtime favorite of Swimming Pool Leak Detector Pros
•Finally Solves #1 Complaint of DIYers! - Enough dye! 8 oz bottle provides approximately 40 refills of syringe to adequately test all areas of your pool system
•Easy refill - Flip top lid allows for spill-free refilling of dye tester

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$12.99

$19.99

-35%

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WANJAO

WANJAO Pool Leak Detection Dye Kit, Pool Liner Leak Detection Kit with 2 Precision Dispensing Strong Fluorescence Effect for All Pools, Spa, & Hot Tub Types Easily Locates Leaks (100ml, Yellow)

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•Pool Leak Detection Kit: Ultra-concentrated formula clearly highlights even the smallest leaks without staining surfaces.
•Quick Leak Detection: Instantly reveals hidden pool leaks with bright fluorescent glow, saving time and water. Locking tips extend reach for testing drains, fittings, and tight spaces.
•Works Day or Night: Fluorescent dye visible even in low light, measure and inject dye precisely near cracks, seams, or suspected leak points.ideal for pinpointing leaks in drains or dark areas.
•Easy To Use: Fill the pool to normal water level, turn off the pump, and wait for 10 minutes. Insert the tip of the applicator into the fluorescent leak detection liquid to fill, then place the tip ½ inch away from the suspected leak point and squeeze out 2-3 ml of pool dye. The dye will flow to the leak point, revealing its location.
•Pool Dye Leak Detection Kit:Includes 100ml leak detection dye,1 (5ml) applicators and 2 versatile 2” locking tips.The straight tip reduces water disturbance for accurate testing, while the angled tip reaches tight spots behind plumbing and jets.

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$12.99

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JAOJAO

JAOJAO Pool Leak Detection Kit, Pool Dye Leak Detection Kit with 2 Precision Dispensing Strong Fluorescence Effect Easily Locates Leaks for All Swimming Pool Spa Hot Tub Types, 100ml Yellow

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Pool Dye Leak Detection Kit: Swimming pool fluorescent leak detection liquid is a special liquid used to detect tiny cracks and leaks in swimming pools or pools.
•Quick Leak Detection: Instantly reveals hidden pool leaks with bright fluorescent glow, saving time and water.
•Works Day or Night: Fluorescent dye visible even in low light, ideal for pinpointing leaks in drains or dark areas.
•Easy To Use: Fill the pool to normal water level, turn off the pump, and wait for 10 minutes. Insert the tip of the applicator into the fluorescent leak detection liquid to fill, then place the tip ½ inch away from the suspected leak point and squeeze out 2-3 ml of pool dye. The dye will flow to the leak point, revealing its location.
•Pool Leak Dye Kit :Includes 100ml leak detection dye,1 (5ml) applicators and 2 versatile 2” locking tips.The straight tip reduces water disturbance for accurate testing, while the angled tip reaches tight spots behind plumbing and jets.

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$13.49

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ANDERSON

anderson LD601 20-Pack Dye Refill, Blue, 8-Ounce

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•Anderson blue dye refill has a special concentrated dye that holds together underwater
•Help in leak locating dye is for the detection of leaks in light colored pools
•Works on plaster as well as vinyl and painted pools
•Plastic needle allows for precise dye placement without creating unwanted currents
•Available in 8-ounce and blue color; includes 20 refills per pack

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$10.58

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ANDERSON

ANDERSON Refill Florescent DYE for Pool and SPA, 8 FL.OZ, Fluorescent-Yellow

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•Anderson Refill Florescent Dye For Pool Leak Tester - Fd601 Br /Br/8 Oz; Refill For Anderson Syringe-Style Testers; Br /Br/Anderson Flourescent Yellow Leak Locating Dye Is For The Detection Of Leaks In Dark Colored Pools; Works On Plaster As Well As Vinyl And Painted PoolsBr /Br/Does Not Include Testing Syringe
•Flip Top Lid Allows Spill-Free Refilling Of Fluorescent Yellow Dye Testers; 8 Oz; Bottle Provides Approximately 40 Dye Tester Refills
•No Assembly Required
•Country Of Origin: United States

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$11.88

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