The Importance of pH Testing in Jacuzzis

Maintaining a balanced pH in Jacuzzis and hydromassage tubs is essential for the safety and comfort of users, as well as for the longevity of the equipment. This simple measure can make the difference between a relaxing experience and an unpleasant or even dangerous one.

Check the pHlevel weekly and before each use. The pHcan be affected by:

• The number of users
• Organic contamination of the water
• The quality of water used
• Substances used in the spa
• The type of disinfectant used

Maintaining an appropriate pH level is important for:

• Optimising the effects of disinfectants
• Keeping the water at a comfortable level
• Preventing equipment damage

The recommended pH range for jacuzzis: 7.2-7.6

Effects of an unbalanced pH:

If the pH level in the jacuzzi is too low (water is acidic):

• The disinfectant is no longer effective, increasing the risk of water contamination
• The water may become irritating to users
• Spa equipment can corrode

If the pH level in the jacuzzi is too high (water is alkaline):

• The disinfectant is no longer effective, increasing the risk of water contamination
• Deposits will form on the spa tub and equipments
• The water is no longer clear and will create foam
• Can lead to filter blockage

Steps for testing and adjusting pH in jacuzzis:

Water testing

We recommend you two testing methods which, in our view, are the most effective:

• Testing using a reagent test kit. This is considered the optimal testing method
• Testing strips, the most commonly used method by spa owners. Note that these strips are sensitive to heat and humidity, which can lead to incorrect readings, so store them according to instructions

Using recommended substances

If, after testing, you find that the pH in the jacuzzi is high, add sodium bisulphate (also known as sodium hydrogen sulphate): pH minuspH minus. Conversely, if the pH is low, add sodium carbonate in the spa water: pH plus.

Diluting the substances

Using a small bucket, take water from the spa and add sodium bisulphate to lower the pH or sodium bicarbonate to increase the pH. Always follow the quantities recommended on the product label to ensure proper pH adjustment in the jacuzzi.

Starting the pumps

Activate the self-cleaning cycle when adding substances to the jacuzzi. It is important not to use the spa when adjusting the pH.

Gradual addition of diluted substances

Strictly adhere to this step to avoid damaging the tub or jacuzzi equipment.

Waiting and retesting

After adding sodium bicarbonate or sodium bisulphate, wait 2 hours before testing the spa water. Failure to follow this guideline may lead to inconclusive measurements. If the pH adjustment in the jacuzzi has not been achieved even after the recommended time interval, repeat the steps described above and retest the water.

Periodic draining of the jacuzzi

This should be done once every 4 to 6 months. The need to change the spa water becomes more evident as the pH level becomes more difficult to bring into the recommended range.

In conclusion, testing and maintaining an appropriate pH in jacuzzis and hydromassage tubs is not just a recommendation, but a necessity. This simple yet crucial process ensures clean and safe water, protects equipment, and optimises the user experience. Through regular monitoring and prompt pH adjustment, you can enjoy the full benefits of your jacuzzi, with the peace of mind that you've created a safe and comfortable environment for relaxation.

FAQ – Frequently Asked Questions

What is the recommended pH range for jacuzzis?

The recommended range is 7.2-7.6.

What effects can an unbalanced pH have?

A pH that is too low can make the water irritating and corrode equipment. A pH that is too high can reduce the effectiveness of the disinfectant, form deposits, and block the filter.

How is pH tested in jacuzzis?

Two methods are recommended: using a reagent test kit or test strips.

What substances are used for pH adjustment?

To lower the pH, sodium bisulphate (pH minus) is used, and to raise the pH, sodium bicarbonate (pH plus) is used.

How long should I wait after adjusting the pH before retesting the water?

Wait 2 hours before retesting the spa water after adding pH-adjusting substances.