Taylor Reagents for Commercial Pools & Spas

Maintaining crystal-clear, balanced water in commercial pools and spas requires precision—and that starts with reliable testing. At EZ Pool & Spa Supply, we recommend Taylor Reagents, which is trusted by professionals for its unmatched accuracy in monitoring critical water parameters. Below, we break down the essential reagents every pool technician needs, how to use them, and why they matter.

R-0001-C Taylor DPD Reagent #1 (2 Oz)

Tests For: Free Chlorine & Total Bromine
How It Works: Add 5 drops to a water sample to activate the DPD reaction. Combined with R-0002-C, it measures sanitizer levels critical for killing pathogens. High chlorine can irritate swimmers, while low levels risk algae growth.
Pro Tip: Always pair with DPD Reagent #2 for total chlorine readings. Store away from sunlight to prevent degradation.
Purchase Here: R-0001-C

R-0002-C Taylor DPD Reagent #2 (2 Oz)

Tests For: Total Chlorine
How It Works: Added after R-0001-C, this reagent reveals combined chlorine (chloramines), which cause odor and eye irritation. Subtract free chlorine from total chlorine to assess contamination levels.
Pro Tip: Test daily in high-traffic pools to prevent chloramine buildup.
Purchase Here: R-0002-C

R-0004-C Taylor pH Indicator Solution (2 Oz)

Tests For: pH (6.8–8.2 range)
How It Works: Add 5 drops to a sample, then match the color to the comparator. Proper pH (7.4–7.6) ensures sanitizer efficacy and prevents equipment corrosion.
Pro Tip: Use Acid Demand or Base Demand reagents to calculate chemical adjustments.
Purchase Here: R-0004-C

R-0007-C Taylor Thiosulfate N/10 (2 Oz)

Tests For: Total Alkalinity, Phosphate, & Total Dissolved Solids (TDS)
How It Works: Neutralizes chlorine interference in alkalinity tests. High TDS (>1500 ppm) can cloud water and reduce sanitizer efficiency.
Pro Tip: Add an extra drop of R-0007-C if free chlorine exceeds 5 ppm to avoid false alkalinity readings.
Purchase Here: R-0007-C

R-0008-C Taylor Total Alkalinity Indicator (2 Oz)

Tests For: Total Alkalinity (80–120 ppm ideal)
How It Works: Turns the sample green before titration with R-0009-C. Proper alkalinity stabilizes pH and prevents scaling.
Pro Tip: Test weekly—low alkalinity causes pH swings, while high levels lead to cloudy water.
Purchase Here: R-0008-C

R-0009-C Taylor Sulfuric Acid .12N (2 Oz)

Tests For: Total Alkalinity via Titration
How It Works: Add drop-by-drop to the alkalinity sample until it turns red. Multiply drops by 10 for ppm.
Pro Tip: Add one extra drop after the color change to confirm results.
Purchase Here: R-0009-C

R-0010-C Taylor Calcium Buffer (2 Oz)

Tests For: Calcium Hardness (200–400 ppm ideal)
How It Works: Creates a high-pH environment to activate the calcium indicator. Low hardness erodes surfaces; high levels cause scaling.
Pro Tip: Always rinse the tube after testing to avoid reagent cross-contamination.
Purchase Here: R-0010-C

R-0011L-C Taylor Calcium Indicator Liquid (2 Oz)

Tests For: Calcium Hardness
How It Works: Turns sample red-purple, then blue when titrated with R-0012-C. Ensures balanced water to protect plaster and equipment.
Pro Tip: Test monthly in saltwater pools, as salt generators increase calcium buildup.
Purchase Here: R-0011L-C

R-0012-C Taylor Hardness Reagent (2 Oz)

Tests For: Calcium Hardness via Titration
How It Works: Count drops until the sample turns blue. Multiply by 10 for ppm.
Pro Tip: Swirl continuously while adding drops for consistent results.
Purchase Here: R-0012-C

R-0870-I/J Taylor DPD Powder (10g or 0.25 Lb)

Tests For: Free & Total Chlorine (FAS-DPD Method)
How It Works: Dissolve a scoop in water, then titrate with R-0871-C for precise chlorine readings up to 50 ppm.
Pro Tip: Use powder immediately after opening—it absorbs moisture and degrades quickly.
Purchase Here: R-0870-I/J

R-0871-C Taylor FAS-DPD Titrating Reagent (2 Oz)

Tests For: Free & Total Chlorine
How It Works: Each drop neutralizes 0.5 ppm chlorine. Ideal for commercial pools with high bather loads.
Pro Tip: Store in a cool, dark place to maintain potency.
Purchase Here: R-0871-C

Keep Your Reagents Stocked & Accurate

• Shelf Life: Most reagents last 8–12 months. Replace annually for reliable results.
• Storage: Keep bottles tightly closed and away from heat or humidity.
• Shop Smart: EZ Pool & Spa Supply offers bulk sizes for high-volume commercial users, with fast shipping to keep your testing on track.

Why Choose EZ Pool & Spa Supply?
We specialize in commercial-grade reagents and other quality pool care equipment, chemicals, supplies, and accessories. Whether you’re managing a community pool or a luxury spa, our Taylor inventory ensures every test delivers precision.

Ready to Optimize Your Water Testing?
Visit EZ Pool & Spa Supply to stock up on professional-grade reagents today!