Why do my test strips show a low chlorine reading?

Why do my test strips show a low chlorine reading?

Have you added chlorine to your spa pool only to find the chlorine level is low?
Click the button below to learn about water quality in a spa including testing and using pH strips.


Should I use Test Strips?

Yes, but only to balance your spa water but not to check the sanitiser level. Do not use the test strips to monitor chlorine levels. Instead, you should always follow the dosing instructions on the sanitiser label.

If I don't use test strips, how do I know if my chlorine level is correct?

Instead of using test strips for the chlorine level, we recommend that you follow the certified dosing instructions on the back of the sanitiser label. 

What are test strips used for ?

There are test strips with many different types of tests on a single strip. As an example, a 3-way Test strip might test for Free Chlorine, pH and Alkalinity. 

Alkalinity and pH make up the majority of water balancing and you need to ensure that your water is balanced or you can risk damaging your spa and voiding the warranty through corrosion. Furthermore, if your spa water is out of balance your spa sanitiser will not work as efficiently.

Click the button below to learn about water quality in a spa including water testing and using pH strips.


What are the dosing instructions?

Dosing instructions state the quantity of spa sanitising chemical to use per litre of water for your spa. For a spa pool, it is usually represented as grams of sanitiser per 1000 litres of spa water.
You need to read the label on the back of your sanitiser to determine the correct amount for the sanitiser that you should be using.

Click the button below to learn about water quality in a spa including dosing and sanitisers.


What if I cannot dose my spa every day as the dosing instructions say?

If you cannot dose your spa each day, we recommend following the instructions on the label and use the recommended shock dose.