Cal-Plus - Calcium Riser 1.75 Kg

Cal-Plus - Calcium Riser 1.75 Kg

Raises calcium hardness of swimming pool water.

Cal-Plus will raise the calcium hardness in swimming pool water. Cal-Plus is completely soluble in water and it is safe to swim in the water immediately after application of Cal-Plus.

The Cure for “Hungry Water” & Excess Foam

Many people believe soft water is better — but in a hot tub, low calcium hardness can quietly damage your equipment.
When water has low calcium hardness, it becomes chemically aggressive. Often called “hungry water,” it seeks calcium from whatever materials it contacts. In a spa environment, this means heater elements, pump seals, and metal components are gradually worn down, leading to corrosion and premature failure.
Cal-Plus is designed to correct this imbalance quickly and effectively.
By raising calcium hardness into the recommended range of 150–275 ppm, Cal-Plus helps create stable, balanced water that protects heaters, pumps, and internal components — extending the life of your spa equipment.

A Proven Solution for Persistent Foam

If your spa foams excessively when the jets are on, calcium levels are often overlooked.
Why it happens: Low-calcium water has lower surface tension, which allows bubbles to form more easily — similar to soapy water.
How Cal-Plus helps: Raising calcium hardness increases surface tension, which naturally reduces foam formation. In many cases, correcting calcium levels eliminates foaming without the need for ongoing defoamer use.

Key Benefits

• Protects Equipment
• Helps prevent corrosion of heaters, pumps, jets, and seals caused by aggressive water.
• Reduces Foaming
• Proper calcium hardness improves water stability and minimizes bubble formation.
• Fully Soluble
• Dissolves quickly and disperses evenly when added correctly.

Do Cedar Tubs Need Calcium?

This is a common question — and the answer is yes.

• Concrete Pools: Need calcium to protect plaster surfaces.
• Cedar Tubs: While wood itself does not require calcium, all cedar tubs rely on metal heater packs and pumps.

If calcium levels are too low in a cedar tub, the water will still attack heater elements and metal fittings, often causing damage in a short period of time.

Conclusion:
Calcium hardness is essential in cedar tubs to protect the equipment, even if the wood structure itself is unaffected.

How to Use

1. Test your water using a calcium hardness test strip.
2. Below 150 ppm: Add Cal-Plus.
3. Ideal Range: 150–275 ppm.
4. Above 300 ppm: Do not add Cal-Plus.
5. Application: Broadcast granules evenly over the water surface with pumps running.
6. Circulation: Allow water to circulate for at least 20 minutes, then re-test.

Product Specifications

• Size: 1.75 kg (3.8 lbs) pail
• Active Ingredient: Calcium Chloride
• Format: Fast-dissolving granules / flakes
• Compatibility: Safe for use with chlorine, bromine, biguanide, and salt systems

Size: 1.75 Kg (3.8 lbs)