• AquaDoc Spa pH Up and Alkalinity Up bottles
  • Hot tub water balancing chemicals for spas
  • pH increaser and alkalinity increaser combo
  • Balanced spa water after chemical treatment
  • Prevent corrosion and scale in spa water
  • Made in the USA spa water treatment bundle
  • Close-up of pH and alkalinity adjustment products
  • Spa care product bundle staged next to hot tub
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pH Increaser & Alkalinity Booster Bundle

pH Increaser & Alkalinity Booster Bundle

$49.99
$69.99 $49.99
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Shipping calculated at checkout.
Spa & Hot Tub Chemicals

Raise pH and alkalinity fast for smooth, balanced water. Helps prevent corrosion, scale, and sanitizer issues.
Product Details

Boost low pH and total alkalinity to stabilize your spa water. Supports comfort, clarity, and chemical performance.

How to use

Alkalinity Booster

  1. Test for total alkalinity with a reliable test kit. The desired range for total alkalinity is 80–140 ppm.
  2. Add 1 oz. (2 tbsp.) of AquaDoc Alkalinity Booster Granules to spa water.
  3. Allow water to circulate for 30 minutes.
  4. Repeat steps 1 and 2 until the desired level is reached.
  5. For best results, first dissolve the granules in a small plastic pail of water before adding to spa.

pH Increaser

  1. Use the pH Increaser when pH measures below 7.2.
  2. Turn on air blower, jets, or filter system.
  3. Add 1 oz. of the product for every 100 gallons of spa water.
  4. Retest water after 30 minutes.
  5. Follow steps 1–3 until pH and total alkalinity are in the range of 7.2–7.8 and 80–140 ppm.
Frequently Asked Questions

Q: Can I use both products at the same time?

A: We recommend testing first, then applying alkalinity increaser before adjusting pH. Do not combine in the same container.

Q: What’s the correct order—pH or alkalinity first?

A: Always adjust total alkalinity first, then fine-tune pH. Alkalinity acts as a buffer for pH stability.

Q: How do I know if I need this bundle?

A: If your spa water shows low pH (below 7.2) or low total alkalinity (below 80 ppm), you’ll benefit from this bundle.

Q: Is it safe for all spa types?

A: Yes—this bundle works with chlorine, bromine, and saltwater spa systems.

Q: What are the ideal levels?

A: pH should be 7.2–7.6 and total alkalinity should be between 80–120 ppm.
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  1. 🌿 Paraben free & Aluminum free
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If our products don't solve your (pool or spa-related) headaches, contact us for a 100% refund. Free shipping on all orders over $75!  

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100% Paraben Free

Say goodbye to parabens that can potentially be harmful to your family. All of AquaDoc's chemicals are paraben and aluminum free.

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