How To Maintain Perfect Chlorine Levels

Firstly, congratulations! You are a true pool master of your time. Sanitisation is important and you've conquered it brilliantly. Now, let's maintain your chlorine levels to keep your pool safe and sparkling.


What is the perfect pool chlorine level? 

We're glad you asked! 1-3ppm or the "OK" range on the Aquachek 7 in 1 Test Strips (which is the easiest and quickest tool to use to test your pool water at home).



7 in 1 Test Strips
100 Strips


How do I maintain this magnificent Chlorine level?

 Well, seeing as though you asked so kindly, here's four ways:

1. Cyanuric Acid/Stabiliser/UV Blockout

This chemical goes by a few different names, but UV Blockout is the chemical that keeps your existing chlorine in the water rather than being evaporated by the sun. Keep your Cyanuric Acid level healthy (30-50ppm) for optimum chlorine-keeping results.
Cyanuric Acid doesn't need to be added too often, we recommend checking and balancing levels once per month.


Cyanuric Acid
(UV Blockout, Stabilizer)


2. Chlorinator output

We recommend keeping your Chlorinator at 80% output year round. Ensuring that your salt level is healthy (5000ppm) and the your Chlorinator Box and Chlorinator Salt Cell are working correctly, 80% output will provide your pool with enough Chlorine to keep it sanitised while not over-doing it.

3. Pool water salt level

We recommend adding 2 x 20kg bags of salt once a month for an average 60,000L pool to keep your salt levels at an optimum level. Each 20kg bag of salt will raise your salt level by 500ppm. 

Most Chlorinators work best when your Salt level is sitting at 5000ppm (parts per million). To give you a yard-stick, the ocean is around 35,000ppm(ppm). 

Your Chlorinator uses salt in the water to produce chlorine, so low salt equals low chlorine output. Saltwater testers can be expensive, so it's best to take a sample of water down to your local pool shop to see what your level is.

Tip: Lay your bags of salt over the side of your pool (over the steps preferably), slice the top of each bag open and watch the salt run into the water. This saves you from spilling salt everywhere and hurting your back in a fumble to pour it in the water! 


5. Run your pump at night time

Run your Pump and therefore your Chlorinator at night time. If noise isn't an issue, we recommend running your pump in the middle of the night. This is for a few reasons:

1. We always recommend dosing your pool with chemicals at dusk or night time if possible. By chlorinating your pool at night time this will keep all your core chemicals in the water for as long as possible, rather than being evaporated by the sun as soon as it is produced or added. 

2. We all like saving some money, and running your pump in off-peak periods during night time will do just that.

Click Here For More On How To Fix Pool Water >

Post author:

Natalie Hintze

Head of eCommerce & Marketing at Mr Pool Man,
Co-Founder at Water TechniX


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