Contains: Calcium Chloride - 1kg Compatible with all spa sanitizers. Next adjust the PH and finally, if required, adjust the Calcium Hardness Granular Formula. 1kg Hardness Plus. Spa Hardness Plus. Hardness levels should be maintained between 100 - 200mg/l (ppm).
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50/100pcs Multipurpose 7 in 1 Chlorine PH Test Strips SPA Swimming Pool Water Tester Paper Hardness Tool Pool Accessories
Aliexpress UK
Fi-Clor Spa Hardness Increaser is used to raise the calcium hardness level in spa water. Calcium hardness is the amount of dissolved calcium and magnesium in pool water.
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50/100pcs Swimming Pool PH Test Paper Multipurpose 7-in-1 Residual Chlorine Value Alkalinity Hardness Tester for Pool Spa
Aliexpress UK
Fi-Clor Hardness Increaser is for raising the calcium hardness level in swimming pool water. Calcium hardness is the amount of dissolved calcium and magnesium in pool water. If there is insufficient dissolved calcium, the water will try and take it from the grouting and concrete in the pool.
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NEW 50 Strips 6 In 1 Multipurpose Chlorine PH Test Strips SPA Swimming Pool Water Tester Paper Hardness Tool PH Value Test Kits
Aliexpress UK
Sweet Spa Solutions Calcium Hardness Increaser 5kg - Swim Spas, Hot Tubs, Swimming Pools and Spas. This product should be used to raise the calcium hardness levels in Spa, Hot Tub and Pool water. If there is insufficient levels of calcium in the water it may be difficult to balance the water and grout loss within tiled spas may occur.
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3/7in1 Chlorine PH Test Strips SPA Swimming Pool Water Tester Paper Residual Chlorine PH Value Alkalinity Hardness Test Strip
Aliexpress UK
1kg Spa Harness Plus Hot Tub Hardness +. Contains: Calcium Chloride - 1kg compatible with all spa sanitizers. Next adjust the pH and finally, if required, adjust the Calcium Hardness Granular Formula.
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New 50pcs/set Multipurpose 5 in 1 Chlorine PH Test Strips SPA Swimming Pool Water Tester Paper Hardness Tool
Aliexpress UK
Hardness Plus - your pool or spa water needs to have a Calcium Hardness level of between 200ppm (mg/l) and 300ppm. Full usage and dosage instructions are given on the container. So, if you live in a soft water area, this product could be for you.
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50pc Chlorine PH Test Strips SPA Swimming Pool Water Tester Paper Residual Chlorine PH Value Alkalinity Hardness Test Strip 3in1
Aliexpress UK
Spa Essentials 32534000 Calcium Hardness Increaser Granules for Spas and Hot Tubs, 12-Ounce. Item model number: 32534000. Calcium Hardness Increaser Granules for Spas and Hot Tubs. Increases Calcium Hardness Level In Spa Water.
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100 Pieces Multipurpose Chlorine PH Test Strips SPA Swimming Pool Water Tester Paper Hardness Tool
Aliexpress UK
The SpaPure Hardness Increaser is a granular product that is designed to safely raise the calcium hardness levels in your spa water. Regular use of this product will stop and prevent the corrosion of your spa's surfaces.
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Paper Hardness Tool Bottled 50pcs 5 in 1 PH Test Strips Multipurpose SPA Swimming Pool Water Tester
Aliexpress UK