Spa World Calcium Hardness 500g

Product Features

• Essential for water balance
• Regulates low water hardness due to the quality of the fill water
• Prevents surface staining
• Helps protect spa and equipment.

DIRECTIONS FOR USE

• Hardness raiser is used to raise low hardness levels in spa water. When a correct hardness level is maintained in accordance with the Langelier Index for spa water, there will not be any corrosion of the surface.

GENERAL INSTRUCTIONS

1. Add 150 grams per 1,000 liters of spa water to raise the hardness 100mg/L.
2. Mix Hardness Raiser 1kg maximum in a bucket of water before dispersing over the spa pool's surface.
3. Run the filter for 4-5 hours before re-testing.
4. We recommended pH testing regularly by use of reliable test strips
5. If pH falls outside the required range (7.2-7.6) add pH increaser or pH decreaser as needed. 
6. Dose spa 8-10 hours before planned use time. (If you plan on using the spa in the evening, dose in the morning).
7. Additional information may be obtained from your nearest pool store.

Download Product MSDS

Spa chemicals cannot be shipped to a Post Box. Please provide a physical address during checkout.

Read the guide below for more details on maintenance in your spa

DISCLAIMER

Any advice or suggestions above, including but not limited to instructions and dosing rates are intended to be a guide only. Spa World and its staff recommend you read the full instructions on all chemical containers. We will not accept responsibility for the use of these products.

Specifications

• Size: 500g
• Model: 5002027SW
• Manufacturer: Spa World

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