Rx Clear Calcium Plus | Granular Calcium Chloride | Raises Calcium in Swimming Pool Water | Hardness Increaser for Swimming Pools | Helps Prevent Corrosion | 25 Lbs

  • ...ion of metal surfaces such as light fixtures, railings, ladders, screws, pool cover components, pool heater components, and metals in your pump or filter. Also prevents etching, pitting, and delamination of concrete, plaster, gunite, shotcrete, and fiberglass pools..
  • WATER CHEMISTRY - One of the most important aspects of proper swimming pool care involves the maintenance of balanced water chemistry. When swimming pool chemicals are not at their ideal levels, swimmers can be at risk of contracting illnesses and suffering from skin irritation, the water can turn dull and cloudy, and pool or spa equipment, hoses, and surfaces can become damaged..
  • DOSAGE - The ideal range is 200 to 400 parts per million (ppm). Six lbs. per 10,000 gallons will raise the hardness level approximately 50 ppm. The minimum calcium hardness level is 150 ppm. Trust Rx Clear as the most reliable leader in pool cleaner products and supplies..
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Taylor Complete Swimming Pool/Spa Test Kit + Sodium Chloride Salt Water Test

  • Keep your swimming pool, hot tub, or spa safe with this convenient testing kit.
  • Allows the pool manager to maintain the highest levels of water quality.
  • Allows you to test for free and total chlorine, pH, bromine, acid/base demand, total alkalinity, and cyanuric acid (stabilizer).
  • Waterproof edition pool & spa water chemistry guide.
  • Color coded instructions and treatment guide is provided so you know how to treat your pool or spa.
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Taylor K2005 Pool Chlorine Bromine Alkalinity Test Kit w/Additional Basic Kit

  • Keep your swimming pool, hot tub, or spa safe with this convenient testing kit.
  • Allows the pool manager to maintain the highest levels of water quality.
  • Allows you to test for free and total chlorine, pH, bromine, acid/base demand, total alkalinity, and cyanuric acid (stabilizer).
  • Waterproof edition pool & spa water chemistry guide.
  • Color coded instructions and treatment guide is provided so you know how to treat your pool or spa.
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Taylor K2006 Complete Swimming Pool Chlorine Test Kit w/Additional Basic Kit

  • Keep your swimming pool, hot tub, or spa safe with this convenient testing kit.
  • Allows the pool manager to maintain the highest levels of water quality.
  • Allows you to test for free and total chlorine, pH, acid/base demand, total alkalinity, calcium harness, and cyanuric acid.
  • Waterproof edition pool & spa water chemistry guide.
  • Color-coded instructions and treatment guide is provided so you know how to treat your pool or spa.
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Taylor 2000 Service Complete and Salt Water Drop Swimming Pool and Spa Test Kits

  • Keep your swimming pool, hot tub, or spa safe with this convenient testing kit.
  • Allows the pool manager to maintain the highest levels of water quality.
  • Allows you to test for free and total chlorine, pH, acid/base demand, total alkalinity, calcium harness, and cyanuric acid.
  • Waterproof edition pool & spa water chemistry guide.
  • Color-coded instructions and treatment guide is provided so you know how to treat your pool or spa.
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Taylor K2005 Pool Hardness pH DP Test Kit & K-1766 Salt Water Drop Test Kit

  • Taylor K2005 Swimming Pool Chlorine Bromine Alkalinity Hardness pH DP Test Kit.
  • Keep your swimming pool, hot tub, or spa safe with this convenient testing kit.
  • Allows the pool manager to maintain the highest levels of water quality.
  • Allows you to test for free and total chlorine, pH, bromine, acid/base demand, total alkalinity, and cyanuric acid (stabilizer).
  • Waterproof edition pool & spa water chemistry guide.
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Taylor Complete Pool & Spa Test Kit - High Range K-2005C 2 oz Reagents

  • Keep your swimming pool, hot tub, or spa safe with this convenient testing kit.
  • Allows the pool manager to maintain the highest levels of water quality.
  • Allows you to test for free and total chlorine, pH, bromine, acid/base demand, total alkalinity, and cyanuric acid (stabilizer).
  • Waterproof edition pool & spa water chemistry guide.
  • Color-coded instructions and treatment guide is provided so you know how to treat your pool or spa.
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Hot Spring Freshwater Portable Spa Test Strips

  • BEWARE: We want you to receive quality, authentic product so please carefully note the seller you are buying from and where it is shipping from to avoid receiving a bad copy of this product.
  • For maintaining healthy water chemistry in swimming pool or spa.
  • contains 2 bottles, 100 strips total in easy-to-store container.
  • Pool water tester analyzes four chemical factors.
  • free chlorine, bromine, alkalinity and pH.
  • Dip in pool or spa water for instant reading.
  • no-bleed pads give accurate color reading.
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in The Swim Super Stain Away 1 QT F066001012AE

  • Natural Chemistry scale free prevents scaling caused by calcium and mineral hardness.
  • It prevents metal staining and scale build-up to prolong pool equipment.
  • Deactivates iron, calcium and other minerals.
  • Compatible with all sanitizers and pool surfaces.
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Natural Chemistry Scale Free, 2-Liter

  • Natural Chemistry scale free prevents scaling caused by calcium and mineral hardness.
  • It prevents metal staining and scale build-up to prolong pool equipment.
  • Deactivates iron, calcium and other minerals.
  • Compatible with all sanitizers and pool surfaces.
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In The Swim Ultimate Pool Opening Chemical Start Up Kit - Up to 35,000 Gallons

  • Ultimate kit is formulated for any pool up to 35,000 gallons..
  • Contains Natural Chemistry's Phos-Free which "starves" all phosphates from the water.
  • Contains Metal Free, a based acid that is formulated to work hand-in-hand with Phos-Free to prevent staining.
  • Ultimate start up pool chemical kits will make your pool opening hassle-free..
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Natural Chemistry 07400 Stain Free Pool Stain Remover 1-3/4 Pounds

  • 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.
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AquaChek Salt Test Strip Titrators for Pools - Salt Water Pool Test Strips for Sodium Chloride - Quick and Accurate Results - Professional Water Quality Testing Kit (10 Strips)

  • WHITE SALT TEST STRIPS: Tests the salt (sodium chloride) levels for pools with salt generator systems.
  • White titrators measure levels from 400 to 7,000 ppm.
  • AQUACHEK ACCURACY: Using medical industry technology, our test strips offer comparable accuracy to liquid tests.
  • No measuring & counting drops of reagent, leaving less room for error.
  • EASY TO USE: Just dip the test strip & remove it.
  • Water chemistry insert & directions included.
  • Test water at least twice a week for safe, balanced water.
  • SAFE & CLEAN WATER: Pool testing strips offer simple & accurate way to ensure your salt generator will produce the correct amount of chlorine to keep water healthy.
  • FREE MOBILE APP: Receive a tailored treatment plan when manually inputting your results.
  • Record, track, & monitor your pool’s chemistry with AquaChek Connect.
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