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AquaDoc Spa Alkalinity Increaser for Hot Tub - 32oz (2 Pack) - Sodium Bicarbonate Granules for Water Balance and Preventing pH Bounce

AquaDoc Spa Alkalinity Increaser for Hot Tub – 32oz (2 Pack) – Sodium Bicarbonate Granules for Water Balance and Preventing pH Bounce

$37.99

Estimated delivery time:
3-5 days.

Free shipping:
On all orders over $50.

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  • 2-pack of Alkalinity Increaser – When alkalinity drops, pH can fluctuate and water balance becomes harder to maintain. Our hot tub alkalinity increaser helps raise total alkalinity to support more stable, comfortable spa water.
  • Supports pH Stability – Balanced alkalinity helps buffer pH changes and reduce frequent swings. For most spas, maintaining alkalinity in the 80–140 ppm range supports stable water chemistry and easier maintenance.
  • Helps Reduce pH Fluctuations – Low alkalinity can cause ongoing pH bounce that leads to repeated adjustments. Restoring alkalinity levels helps create a more stable foundation for consistent water care.
  • Fast-Dissolving Granules – The sodium bicarbonate granules dissolve easily and distribute evenly throughout circulating spa water. Test your levels, add as directed, circulate for one to two hours, and retest to confirm balance.
  • Made In The USA – At AquaDoc, we make high-quality hot tub chemicals designed to support balanced, comfortable water. Proudly made in the USA with consistent quality standards.

Orders ship within 1–3 business days. We offer free standard U.S. shipping on orders over $50.

Returns accepted within 14 days of delivery for unused items in original packaging. Email us to request a return or refund.

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Store Location
Mon–Fri: 9 AM – 9 PM EST
Sat: 9 AM – 5 PM EST

(313) 483-9351
sales@terraweco.com

Be the first to get promo offers and reward perks straight to your inbox.

You can easily unsubscribe from our emails at any time by using the link provided in every message we send you.

© 2022–2026 TerraWeco. All rights reserved.

 

IMPORTANT: TerraWeco is not affiliated with, nor responsible for, any third-party websites or resellers not explicitly operating under the TerraWeco.com domain.