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Northern Lights Hot Tubs

The original cedar hot tubs company

Main logo header + footer
Northern Lights Hot Tubs

The original cedar hot tubs company

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New
pH Reducer for balanced pH levels
pH verlager/pH reducer/ réducteur de pH/pH-Reduzierer
pH verlager/pH reducer/ réducteur de pH/pH-Reduzierer
Click to enlarge
    pH Reducer for balanced pH levels
    pH verlager/pH reducer/ réducteur de pH/pH-Reduzierer
    pH verlager/pH reducer/ réducteur de pH/pH-Reduzierer
    Home Water quality pH Reducer
    pH Increaser for balanced pH levels
    pH Increaser €14,85
    Back to products
    Replacement electrode
    ClearBlue Mineral Ionizer Replacement Electrode €139,00

    pH Reducer

    €14,85

    Spa pH Minus Powder quickly and effectively lowers high pH levels in your spa, ensuring balanced, high-quality water. Easy-to-use powdered formula suitable for all spa types.

    • Description
    Description

    To maintain excellent water quality in your spa, Spa pH Minus Powder is the ideal solution when the pH level is too high. This user-friendly powdered pH reducer is essential for achieving and maintaining a perfectly balanced pH level in your spa water. Simply dissolve the product in a bucket of water and distribute it evenly across the surface of the spa.

    For optimal results, allow the filtration system to operate for approximately 4 hours after adding Spa pH Minus Powder. We recommend testing the pH level of your spa water at least once per week.

    Please note that the required dosage depends on both the measured pH level and the total water volume of your spa. Refer to the dosage chart below for precise instructions.

    Product Details:

    • Content: 1500 grams
    • Suitable for all spa types
    • Effectively lowers the pH level of spa water
    • Easy-to-use powder formulation
    • Recommended use: test pH levels at least once per week
    • Dosage depends on measured pH value and spa water volume

    Dosage

    pH 20 m³ 50 m³ 75 m³ 100 m³ 1 m³
    < 7.2 0 0 0 0 0
    7.2 – 7.6 Ideal level
    7.6 – 8.0 120 g 300 g 450 g 600 g 6 g
    8.0 – 8.4 240 g 600 g 900 g 1200 g 12 g
    > 8.4 360 g 900 g 1350 g 1800 g 18 g

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      Main logo header + footer

      Northern Lights Hot Tubs started as a small family business in the 1980’s. From the early days we have focused on manufacturing the highest quality wooden hot tubs. Today you will find our products in 100+ countries worldwide.

      CONTACT

      Northern Lights Pickup Depot
      By appointment only

      2870 Puurs - Belgium

      +3232487611

      info@northernlightshottubs.com

      OUR COMMITMENT

      • Highest quality hot tubs
      • Easy assembly
      • 100% red cedar wood
      • 20+ years of craftmanship

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      Northern Lights® is a registered trademark. Copyright© 2026 All rights reserved

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      • Home
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        • 3D configurator
      • OUR HOT TUBS
        • Specifications
        • Models and sizes
        • Western red cedar
        • Heating methods
        • Maintenance
        • Assembly
        • Example designs
      • Gallery
      • PRACTICAL INFO
        • Frequently asked questions
        • Pre-project documentation
        • Tips & information
        • Featured projects & awards
      • SHOP PARTS
        • Product categories
        • Your account
      • About us
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