Test Strips

Check pool and spa water chemistry in seconds with water test strips from AquaChek, LaMotte, Hach, and BluWater Technology. PST Pool Supplies stocks 4-in-1 through 7-in-1 test strips for every standard pool and spa sanitation system — starting from $16.50.

Test strips offer the fastest daily water chemistry check — dip, wait 15–30 seconds, and compare to the color chart. While drop test kits provide greater precision, quality test strips are accurate enough for routine maintenance monitoring and immediate action decisions. The key strips in this collection: AquaChek Select 7-in-1 (50 ct) is the most comprehensive test strip — measures free chlorine/bromine, pH (6.2–8.4), total alkalinity (0–240 ppm), calcium hardness (0–1,000 ppm), and cyanuric acid stabilizer (0–300 ppm) in one strip. Covering all five Langelier Saturation Index parameters makes it the best choice for complete water balance monitoring without a drop kit. The AquaChek 6-in-1 Spa (50 ct) tests total and free chlorine, bromine, alkalinity, hardness, and pH — designed specifically for spa water chemistry where multiple parameters shift quickly with the small water volume. The AquaChek Pro II 4-in-1 (25 ct) focuses on the four most critical parameters for pool service professionals: calcium hardness, total alkalinity, pH, and cyanuric acid. The LaMotte Insta-Test 5-Way (50 ct) tests free chlorine (0–10 ppm), bromine (0–20 ppm), total chlorine, alkalinity (0–240 ppm), pH (6.2–9.0), and hardness (0–800 ppm) — a comprehensive strip for users who prefer LaMotte chemistry. The BluWater Sodium Bromide (NaBr) test strips are specialized for BluWater bromine generator systems — testing pH (7.2–7.8), calcium hardness (150–200 ppm), total alkalinity (80–120 ppm), sodium bromide (98% NaBr target), and phosphate levels (below 125 ppb). The Horizon Copper/pH/Alkalinity strips (25 ct) diagnose copper contamination alongside pH and alkalinity — useful when copper-based algaecides are used or when green staining suggests copper corrosion.

For best accuracy: dip the strip in moving water (not still surface water), hold horizontally when removing, do not shake off excess water — let it drip, and read in natural light within the specified timeframe (15–60 seconds depending on brand). Store test strips in a cool, dry location with the cap tightly closed; exposure to humidity or heat degrades the reagent pads. Replace annually or when results seem inconsistent with pool conditions.

Shop pool and spa test strips at PST Pool Supplies and make daily water monitoring quick, simple, and reliable.