ReviewsCalcium Hardness Test

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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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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Baquacil 84367 Calcium Hardness Increaser Swimming Pool Balancer, 3.5 lbs

  • BENEFITS: Raises spa water to the recommended level of calcium hardness to prevent corrosion.
  • USE: 1 lb per 10,000 gallons to raise calcium hardness by 10 ppm.
  • Maintain levels between 180-250 ppm for vinyl pools and 200-275 ppm for plaster pools.
  • COMPATIBILITY: Works with chlorine and bromine sanitized pools.
  • INCLUDES: One 3.5-lb container of Baquacil Calcium Hardness Increaser.
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Spa Choice 472-3-3061 Increase Calcium Spa Chemical, 1-Quart

  • Spa Choice Increase Calcium is used to increase calcium hardness in spas and hot tubs in areas with low levels of hardness.
  • Low hardness will etch plaster and corrode spa equipment.
  • The ideal hardness level is 200-400 ppm (parts per million).
  • Downloadable User Guide Available Under Product Information: Technical Specifications.
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Puri Tech Pool Chemicals 25 lb Calcium Hardness Increaser Plus for Swimming Pools & Spas Increases Calcium Hardness Levels Prevents Surface Staining

  • BRAND NEW PACKAGING: All Puri Tech Chemicals now come in resealable bags for easy storage!.
  • RAISES CALCIUM in swimming pool water.Calcium Hardness level prevents foaming, equipment and surface erosion and scaling..
  • DOSAGE: 2,000 Gallons: 1.5 Lbs to increase hardness 50ppm, 3 Lbs/100ppm, 6.25 Lbs/200ppm. 5,000 Gallons: 3 Lbs to increase hardness 50ppm, 6.25 Lbs/100ppm, 12.5 Lbs/200ppm. 10,000 Gallons: 6.25 Lbs to increase hardness 50ppm, 12.5 Lbs/100ppm, 25 Lbs/200ppm. 20,000 Gallons: 10.5 Lbs to increase hardness 50ppm, 25 Lbs/100ppm, 50 Lbs/200ppm..
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Clear Spa Hot Tub Balancing Chemical Bundle Includes pH Plus pH Minus Alkalinity Calcium Test Strips LeisureQuip ScumBoat and LeisureQuip Hot Tub Care Guide E-Book

  • CONTAINS: Clear Spa Total Alkalinity Increaser 2lb, Clear Spa Calcium Increaser 2lb, Clear Spa pH Plus 2lb, Clear Spa pH Minus 3lb, BioGuard Test Strips, LeisureQuip ScumBoat floating scum absorber, and LeisureQuip Hot Tub Tips ebook and Printable Hot Tub Guide & Log Book.
  • EFFECTIVE: Tested and proven Clear Spa products are reliable and help take the hassle out of your spa or hot tub care.
  • APPROVED: Clear Spa water balancers provide the right balance for your spa, hot tub or pool, by preventing surface corrosion and equipment damage while balancing water for bather comfort.
  • Clear Spa Total Alkalinity Increaser raises total alkalinity level to prevent pH shifts which might cause equipment corrosion..
  • Clear Spa Calcium Increaser effectively raises the calcium hardness level which helps prevent corrosion of equipment and etching of spa surfaces..
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In The Swim Pool Calcium Hardness Increaser - 25 Pound Bucket

  • Dosage 6 lbs per 10,000 gallons to raise calcium hardness level about 50 ppm.
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Leisure Pool 50 lb Calcium Hardness Increaser Calcium Chloride

  • ✅ Calcium Chloride (Dry Granules) commonly known as Calcium Hardness Increaser, will raise calcium hardness levels in commercial and residential swimming pools and spas..
  • ✅ DOSING INSTRUCTIONS: 1.1 lb. per 10,000 gallons will raise CH levels by 10 ppm..
  • ✅ OTHER USE(S): ICE MELT, DUST CONTROL, CONCRETE ACCELERATOR.
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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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