Alkalinity Increaser, SpaGuard®

Proper water balance is essential for a safe and comfortable spa experience. SpaGuard® Alkalinity Increaser (42630BIO) raises total alkalinity levels in spa water, which helps maintain stable pH and prevents sudden fluctuations that can lead to cloudy water, corrosion, or scaling.

When alkalinity is too low, your sanitizer becomes less effective and water conditions can quickly deteriorate. SpaGuard’s fast-dissolving formula is easy to apply and helps protect your spa equipment, surfaces, and skin from damage caused by imbalanced water chemistry.

Recommended Use:
Test your spa water regularly. Add SpaGuard® Alkalinity Increaser when total alkalinity drops below the recommended range (80–120 ppm).

Key Benefits:

• Raises total alkalinity to stabilize pH

• Prevents corrosion, scaling, and cloudy water

• Enhances sanitizer effectiveness

• Easy-to-use granules dissolve quickly

• Essential part of routine water maintenance

We want you to be completely satisfied with your purchase. If for any reason you need to return an item, please review our policy below:

• Returns are accepted on unopened, unused items in their original packaging.

• Items must be returned within 30 days of purchase.

• Customers are responsible for return shipping costs.

• Once the returned item is received and inspected, a refund will be issued to the original payment method within 5–7 business days.

• Opened or used items cannot be returned.

To initiate a return, please contact us at 970-259-0468 with your order number.

All orders are processed and shipped within 2 business days via standard ground shipping.
Free local delivery is available for residents within the Durango, CO area—qualifying zip codes will automatically receive this option at checkout.
Shipping rates are calculated at checkout based on order weight.