SpaGuard Rapid-Dissolve Stain & Scale Tabs - 1.25 lb

Fast-Dissolving Stain and Scale Protection for Spas and Swim Spas

SpaGuard Rapid-Dissolve Stain & Scale Tabs help protect spa and swim spa surfaces, plumbing, heaters, and equipment from stain and scale problems. These convenient tabs are designed to control metal-based staining and scaling, including stains caused by iron, copper, and manganese, while helping reduce scale formation caused by calcium and changing spa water conditions.

This 1.25 lb bottle uses rapid-dissolve tablet technology for easier weekly maintenance. Instead of measuring liquid stain and scale control, add 1 tab per 300 gallons of spa water weekly. The tablet disperses into the water to help protect surfaces and equipment while supporting a cleaner, better-maintained spa.

SpaGuard Rapid-Dissolve Stain & Scale Tabs are a smart accessory product for spas, hot tubs, and swim spas where metals, calcium, high temperatures, and bather waste can contribute to stains, scale, cloudy water, and equipment buildup. Use weekly as part of a complete spa maintenance routine with regular water testing, filter care, and proper water balance.

Key Benefits

• Controls metal-based staining: Helps prevent stains caused by iron, copper, and manganese.

• Helps prevent scale formation: Supports protection against calcium scale on spa surfaces and equipment.

• Protects spa and swim spa equipment: Helps guard heaters, plumbing, surfaces, and circulation components.

• Rapid-dissolve tablet format: Effervescing tabs quickly disperse treatment into the water.

• Easy weekly dosing: Use 1 tab per 300 gallons of spa water.

• No liquid measuring: Convenient tablet format helps reduce guesswork and messy dosing.

• Long-lasting bottle: One bottle treats an average-sized spa for 12+ weeks.

• Useful for existing stains: Some existing stains may be removed by brushing after application.

• Made for spas and swim spas: Ideal for smaller bodies of heated water where scale and metal stains can develop quickly.

Product Details

Compatibility and Requirements

SpaGuard Rapid-Dissolve Stain & Scale Tabs are intended for spas, hot tubs, and swim spas. They are designed to help control scale formation and metal-based stains while protecting equipment and surfaces.

For best results, test spa water at least once per week and keep water balanced. Maintain pH between 7.2 and 7.6, total alkalinity between 125 and 150 ppm, and calcium hardness between 100 and 200 ppm. Clean the filter before use, apply the tablet with a gloved hand into the filter compartment with the jets operating, and clean the filter with a chemical filter cleaner every 30 days.

If used with SpaGuard Spa Complete, temporary clouding may occur because of product compatibility characteristics. With proper circulation and filtration, this clouding should typically dissipate within 48 hours, provided water is balanced.

How to Use SpaGuard Rapid-Dissolve Stain & Scale Tabs

1. Test and balance spa or swim spa water.

2. Clean the filter according to label directions using a chemical filter cleaner.

3. With a gloved hand, add 1 tab per 300 gallons directly into the filter compartment.

4. Keep jets operating while the tablet disperses.

5. Repeat weekly to help prevent stains and scale.

6. Brush existing stains with a spa or swim spa brush after treatment if needed.

7. Clean the filter with a chemical filter cleaner every 30 days.

8. Drain, clean, and refill the spa every 90 days or according to the spa manufacturer’s recommendation.

Frequently Asked Questions

What do SpaGuard Rapid-Dissolve Stain & Scale Tabs do?

They help control metal-based staining and scaling in spas and swim spas. They are designed to protect spa surfaces, heaters, plumbing, and equipment from scale and stains.

What types of stains do they help prevent?

They help prevent stains caused by metals such as iron, copper, and manganese.

How much should I use?

Use 1 tab per 300 gallons of spa water weekly.

How long does one bottle last?

One bottle treats an average-sized spa for 12+ weeks when used as directed.

Can these tabs remove existing stains?

They are primarily used to prevent stains and scale, but some existing stains may be removed by brushing the stained area with a spa or swim spa brush after application.

Where do I add the tablets?

Apply the tablet directly into the filter compartment with the jets operating. Use a gloved hand when handling the tablet.

Can I use this with SpaGuard Spa Complete?

Product information notes that temporary clouding may occur when used with Spa Complete. With adequate circulation and filtration, the clouding should typically dissipate within 48 hours if the water is properly balanced.