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Price
$39.99
Pool & Hot Tub Spa Hardener Hardness Increaser 1kg - Calcium Chloride Increases Hard Water Levels Booster for Enhanced Water Quality – Fast Dissolving - Do Not Pre-Dissolve - No More Mr Nice Guy — image 1
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Pool & Hot Tub Spa Hardener Hardness Increaser 1kg - Calcium Chloride Increases Hard Water Levels Booster for Enhanced Water Quality – Fast Dissolving - Do Not Pre-Dissolve - No More Mr Nice Guy

$39.99
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About this item
  • Increases Calcium Hardness: Effectively boosts the Total Hardness levels in swimming pool, spa and hot tub water protecting your pool and spa surfaces. Once added, the product dissolves rapidly allowing you to resume bathing promptly.
  • Prevents Damage: Essential for preventing long-term serious damage to plaster, vinyl liners, grout, metal rails and other pool and hot tub surfaces caused by low Total Hardness levels. Helps maintain optimal water chemistry enhancing the overall quality and safety of your pool, spa or hot tub.
  • How To Use: 1) Take a Calcium Hardness reading with a water test kit. 2) With the circulation running, sprinkle the product directly in to the water. It is important you do not pre-dissolve.
  • How To Use: 3) Add 10g per 1,000lts of water. Each dose will raise the Calcium Hardness level by approximately 10ppm. Add no more than 50g of product at any one time. Ideal target Calcium Hardness levels are 80 – 200pp. 4) Bathing may recommence when the product has been fully dissolved.
  • Safety Rules: 1) Always keep the container tightly closed. 2) Keep out of reach of children. 3) Store in a cool, well-ventilated area. 4) Wear protective gloves and face and eye protection.
Product description

Product description Pool & Hot Tub Spa Hardness Increaser 1kg - Calcium Chloride Increases Hard Water Levels Booster for Enhanced Water Quality – Fast Dissolving - Do Not Pre-Dissolve - No More Mr Nice Guy Directions 1) Take a calcium hardness reading with a water test kit. 2) With circulation, sprinkle the product directly into the water. It is important that it does not dissolve preliminarily. 3) Add 10g to 1,000lts of water. Each dose will increase the calcium hardness level by approximately 10ppm. Add no more than 50g of product at a time. The ideal target calcium hardness levels are 80-200pp. 4) The bath can start again when the product has been completely dissolved.

Product details
Brand
No More Mr Nice Guy
Manufacturer
No More Mr Nice Guy
Weight
1.00 kg
Model number
ONPFG053-1-NMMNG
Part number
ONPFG053-1-NMMNG
EAN
5060910342701

Customer reviews

What customers say about Bigamart

10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
Excellent
4.5 average rating
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S
Sigalit
🇮🇱 · January 2026

I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
🇦🇺 · November 2025

The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

Showing 12 of 10 reviews

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