Vanishing Act | Freshwater

Manage Calcium Hardness in Your Hot Tub

Vanishing Act | Freshwater is the standard-size calcium remover for spa water. If your fill water is high in calcium, managing hardness can help reduce the mineral scale that may collect on the spa shell, jets and heating components. Make it part of your regular water-care routine to help keep your spa water balanced.

Why use Vanishing Act?

• Reduces calcium hardness: Helps remove excess calcium from hot tub water.
• Helps manage scale: Reducing calcium hardness can help limit mineral buildup on spa surfaces and equipment.
• Standard size: The standard-size version of Vanishing Act for routine spa water care.
• Freshwater Salt System care: Recommended for use with the Freshwater Salt System by Watkins Wellness as part of managing calcium hardness.

Need the larger format? Vanishing Act XL is also available.

Using it in your spa

Check your water's calcium hardness with test strips, and follow the Vanishing Act product label for placement, circulation time and when to remove or replace it. The amount of calcium in your water will affect how often treatment is needed. Consult your spa owner's manual for water-care guidance.

Freshwater 5-Way Test Strips can help you monitor calcium hardness as part of your regular water testing routine.