Skip to content
  • 💸 Don't miss out on big savings and free shipping! 💸
  • 💸 Don't miss out on big savings and free shipping! 💸
Bathtub Spa StoreBathtub Spa Store
  • Menu
  • Hot Tubs
    • Highlife Collection
    • Limelight Collection
    • Freeflow Collection
    • HotSpot Collection
  • Chemicals
    • Pool Chemicals
    • Testing
    • Cleaners
    • Other Water Chemicals
    • Chlorine
    • Shock
    • PH & Alkalinity Balancers
    • Clarifiers, No Scale & No Foam
    • Water Conditioners
    • Bromine
  • Filters & Maintenance
    • Filters
    • Spare Parts
    • Cleaning Tools
    • Submersible Pumps & Hose
  • Spa Accessories
    • Pool Accessories & Parts
    • Toys
    • Other Accessories
    • Thermometers
    • Aromatherapy
    • Tables, Trays and Foot Baths
    • Floating Dispensers
    • Pillows and Headrests
    • Steps
  • Covers
    • Hot Tub Covers – In Stock
    • Hot Tub Protection Bags & Caps
    • Cover Lifters
    • Automatic Covers & Gazebos
    • Cover Straps & Locks
  • New Products
    • No products in the cart.

      Return to shop

  • Cart

    No products in the cart.

    Return to shop

Home / Chemicals / PH & Alkalinity Balancers
  • Happy Premium 4-way Pool & Spa Test Strips (50 Pack) -Bathtub Spa Store happy premium strips
  • Happy Hot Tubs PH Minus - -Bathtub Spa Store ph minus 1.5kg 1
Sale!
Relax Hot Tub PH Minus

Relax Hot Tub PH Minus

$12.00 Original price was: $12.00.$8.40Current price is: $8.40.

Buy Now
SKU: AGFWC 1700536334 Categories: Chemicals, PH & Alkalinity Balancers
  • Safe Payments, Secure Personal Information
  • Safe Transactions, Always
  • Shop with Ease
  • Satisfaction Guaranteed
Browse
  • Chemicals
    • Bromine
    • Chlorine
    • Clarifiers, No Scale & No Foam
    • Cleaners
    • Other Water Chemicals
    • PH & Alkalinity Balancers
    • Pool Chemicals
    • Shock
    • Testing
    • Water Conditioners
  • Covers
    • Automatic Covers & Gazebos
    • Cover Lifters
    • Cover Straps & Locks
    • Hot Tub Covers - In Stock
    • Hot Tub Protection Bags & Caps
  • Filters & Maintenance
    • Cleaning Tools
    • Filters
    • Spare Parts
    • Submersible Pumps & Hose
  • Hot Tubs
    • Freeflow Collection
    • Highlife Collection
    • HotSpot Collection
    • Limelight Collection
  • Spa Accessories
    • Aromatherapy
    • Floating Dispensers
    • Other Accessories
    • Pillows and Headrests
    • Pool Accessories & Parts
    • Steps
    • Tables, Trays and Foot Baths
    • Thermometers
    • Toys
  • Uncategorized
  • Description
  • Reviews (0)

PH Minus is used to reduce the PH of your hot tub water. Maintaining the correct PH in your hot tub is essential. Failure to do this will result in bather discomfort and can damage your spa. Ideal PH conditions are 7.2 to 7.6. 

Relax PH Minus will also reduce Total Alkalinity in your hot tub.

Potential Issues with High PH:

  • Poor Sanitiser Efficiency. Using lots of chlorine to not much effect and adding risk to bathers.
  • Scale build-up on the spa surface and on components.
  • Cloudy or dull water and foaming!

For more information on balancing PH and Alklainity, see our handy guide.

Reviews

There are no reviews yet.

Be the first to review “Relax Hot Tub PH Minus” Cancel reply

Related products

Sale!
Hot Spring Freshwater MPS Chlorine-Free Oxidiser 1kg
Quick View

Chemicals

Hot Spring Freshwater MPS Chlorine-Free Oxidiser 1kg

$24.99 Original price was: $24.99.$17.49Current price is: $17.49.
Sale!
Happy Hot Tubs Stabilised Chlorine Granules
Quick View

Chemicals

Happy Hot Tubs Stabilised Chlorine Granules

$14.99 Original price was: $14.99.$10.49Current price is: $10.49.
Sale!
Spa Frog Complete Floating Sanitising System
Quick View

Bromine

Spa Frog Complete Floating Sanitising System

$46.99 Original price was: $46.99.$32.89Current price is: $32.89.
Sale!
PoolLab Alkalinity-M Photometer Reagent Tablets (50 Pack)
Quick View

Chemicals

PoolLab Alkalinity-M Photometer Reagent Tablets (50 Pack)

$12.00 Original price was: $12.00.$8.40Current price is: $8.40.
Sale!
Relax Spa Small Multifunctional Chlorine Tablets 20g
Quick View

Chemicals

Relax Spa Small Multifunctional Chlorine Tablets 20g

$12.00 Original price was: $12.00.$8.40Current price is: $8.40.
Sale!
Happy Hot Tubs Granular Floc 2kg
Quick View

Chemicals

Happy Hot Tubs Granular Floc 2kg

$17.99 Original price was: $17.99.$12.59Current price is: $12.59.
Sale!
Silk Balance Welcome To Water Care Starter Kit
Quick View

Chemicals

Silk Balance Welcome To Water Care Starter Kit

$119.00 Original price was: $119.00.$83.30Current price is: $83.30.
Sale!
Blue Horizons Stabilised Chlorine Granules 5kg
Quick View

Chemicals

Blue Horizons Stabilised Chlorine Granules 5kg

$37.99 Original price was: $37.99.$26.59Current price is: $26.59.
OUR SHOP
  • My account
  • Checkout
  • Cart
  • Payment Method
CONTACT
  • About Us
  • Contact Us
  • FAQ
  • Returns & Exchanges
CUSTOMER SERVICES
  • Privacy Policy
  • Shipping & Returns
  • Term and Conditions
  • Delivery
STAY IN TOUCH

Sign up for exclusive offers, original stories, events and more.

    Copyright 2025 © www.watertherapybath.com
    • Hot Tubs
      • Highlife Collection
      • Limelight Collection
      • Freeflow Collection
      • HotSpot Collection
    • Chemicals
      • Pool Chemicals
      • Testing
      • Cleaners
      • Other Water Chemicals
      • Chlorine
      • Shock
      • PH & Alkalinity Balancers
      • Clarifiers, No Scale & No Foam
      • Water Conditioners
      • Bromine
    • Filters & Maintenance
      • Filters
      • Spare Parts
      • Cleaning Tools
      • Submersible Pumps & Hose
    • Spa Accessories
      • Pool Accessories & Parts
      • Toys
      • Other Accessories
      • Thermometers
      • Aromatherapy
      • Tables, Trays and Foot Baths
      • Floating Dispensers
      • Pillows and Headrests
      • Steps
    • Covers
      • Hot Tub Covers – In Stock
      • Hot Tub Protection Bags & Caps
      • Cover Lifters
      • Automatic Covers & Gazebos
      • Cover Straps & Locks
    • New Products
    • Login

    Login

    Lost your password?

    Register

    Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy.