Top Water Hardness Reviews

HTH 67042 Calcium Hardness Up Balancer for Swimming Pools, 4 lbs

  • BENEFITS: Ensures that your swimming pool has a balanced calcium hardness so you can enjoy splashing in the water all season long in healthy water.
  • USE: Apply to pool following instructions for easy DIY pool care.
  • For best results, use with other HTH pool care products.
  • COMPATIBILITY: Great for vinyl-lined pools and saltwater systems.
  • Reduces corrosiveness of water with low calcium.
  • Avoid damage to pool surfaces and equipment.
  • INCLUDES: One 4-lb container of Calcium Hardness Up granules for your swimming pool water.
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Red Sea Fish Pharm ARE21515 Saltwater Reef Color Pro Multi Test Kit for Aquarium

  • Contains one (1) API CARBONATE HARDNESS TEST KIT Aquarium Water Test Kit, including 1 bottle of testing solution, 1 color card and 1 glass test tube with cap.
  • Helps monitor water quality and prevent invisible water problems that can be harmful to fish and plants and cause fish loss.
  • Accurately measures carbonate hardness in freshwater and saltwater aquariums.
  • KH (Carbonate Hardness) stabilizes aquarium pH..
  • Use weekly for monitoring and when water or fish problems appear.
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Rx Clear Calcium Plus | Granular Calcium Chloride | Raises Calcium in Swimming Pool Water | Hardness Increaser for Swimming Pools | Helps Prevent Corrosion | 25 Lbs

  • CALCIUM PLUS - Use Rx Clear Swimming Pool Calcium Booster when the calcium hardness reading in your pool drops below 150ppm. Raising calcium hardness helps prevent corrosion of metal and plaster surfaces. Also helps prevent foaming of certain chemicals..
  • BE AWARE - Do not add this product on the same day that either ph plus or alkalinity increaser has been added to the pool water. Add when water hardness levels drop below 150 ppm. Spread the product over the surface of the water while the pump is running. Do not pre dissolve this product..
  • PREVENTS CORROSION - Rx Clear Calcium Plus helps stop corrosion 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....
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Robelle 2825B Pool Calcium Increaser 25-Pounds Bag

  • Low calcium hardness level can cause corrosive water.
  • Prevents the staining or etching of your pool's surface.
  • Ideal calcium hardness range 200 - 400ppm.
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Pool Mate 1-2825 Calcium Increaser for Swimming Pools 25-Pound

  • Low calcium hardness level can cause corrosive water.
  • Prevents the staining or etching of your pool's surface.
  • Ideal Calcium Hardness range 200 - 400ppm.
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Robelle 2808B-02 Calcium Hardness Increaser for Swimming Pools, 16 Pounds

  • Low calcium hardness level can cause corrosive water.
  • Prevents the staining or etching of your pool's surface.
  • Ideal Calcium Hardness range 200 - 400ppm.
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Pool Mate 1-2825B Pool Calcium Increaser, 25-Pounds (Bag)

  • Low calcium hardness level can cause water issues.
  • Prevents the staining or etching of your pool's surface.
  • Ideal calcium hardness range 200 - 400ppm.
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TAYLOR TECHNOLOGIES INC K-1770 TEST KIT CALCIUM HARDNESS

  • Low calcium hardness level can cause corrosive water.
  • Prevents the staining or etching of your pool's surface.
  • Ideal Calcium Hardness range 200 - 400ppm.
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Water Hardness Test Kit: 125 Strips Hard Water Test Kit, TESPERT Water Hardness Test Strips for Water Softener Dishwasher Well Spa Pool

  • GET HEALTH AND CLEAN WATER: Hard water test strips can help you to monitor water hardness levels to prevent corrosion, scale formation, turbid water, or excess foam..
  • MULTIPLE PURPOSES: Water hardness tester are ideal for water filtration systems, fish tanks, swimming pools, spas, laundry, cloth diapers, dishwashers, industrial processes, educational experiments, and homeland security applications..
  • FAST AND EASY: Dip, wait 15 seconds and get instant results in 30 seconds. Compare with the color chart on the bottle, ideal range marked on bottle..
  • LONG-TERM STORAGE: Each test kit contains 125 strips. The quality of the water hardness testing kits can be last for 24 months if they are stored in cool condition and away from light..
  • TEST EXPERTS: We have our own professional research center, high efficient manufactory, and online customer services. Choose TESPERT, get your private testing expert..
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Heater Element, Stainless Steel Electric Heater Element, Mini Boiler Hot Water Coffee Immersion Heater Element for Household, Office, University Dorm, Travel Use, 600W 220V

  • ​Made of stainless steel material, rust resistant, high hardness, heat resistant, safe and ensure healthy and clean water.
  • Quick and safe to heat water, very convenient to use.
  • High working efficiency and low energy consumption.
  • Moderate size is ideal to heat water or coffee in the cup or tea kettle.
  • Suitable for household, office, university dorm or travel use.
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Leisure Time CB Calcium Booster Balancer for Spas and Hot Tubs, 32 fl oz

  • BENEFITS: Raises water hardness to maintain a level of hardness between 150-400 ppm.
  • USE: One ounce increases hardness 7 ppm in 500 gallons of water.
  • COMPATIBILITY: Compatible with chlorine, bromine, ozone, and biguanide sanitizers.
  • Part of Leisure Time's Simple Spa Care program.
  • INCLUDES: One 32-oz bottle of Leisure Time Calcium Booster.
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Water Hardness Test Strips | Fast and Accurate Water Quality Testing Kit for Water Softener, Swimming Pool, Fish Tank , Spa Kit and etc |150 Strips for 150 Hard Water Tests. 0-425 ppm and 0-25 gpg

  • KNOW YOUR WATER HARDNESS: About 85% American households have hard water supplies. Test the hardness of your water and get instant result in less a minute using our water test strip.
  • ACURATE AND FAST RESULTS - CE certified water test kit to give accurate results within seconds, saving you time, and comes with an easy to read color chart, for your convenience.
  • EASY TO USE: Simply dip the test strip in water and compare with color chart for instant and reliable results, no complex water hardness test.
  • SHELF LIFE – 150 testing strips packed in one bottle and two separate bags.
  • strips in an open package need to be used within 3 months, so you can test your water quality at regular intervals and don't have to rush using all 150 strips.
  • MULTIPLE USES – Can be used to test your water softener, drinking, tap and well water, and for any other purposes in which water is used, such as water in your RV, dishwasher and pool.
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Gypsum- 1 lb.

  • Adds hardness to soft water when Brewing.
  • When using distilled water for Brewing, gypsum adds hardness to the water.
  • Improves wart clarity in home brewing beers.
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