Please be aware that standard post is taking longer than usual for delivery due to Covid-19, so we would advise you to choose the express option if require the products in a hurry


Wnat to check for In yout pool after heavy rain
What to check after heavy rain
January 5, 2016
The importance of circuation in your pool
The Importance Of Circulation In Your Pool
March 14, 2016
Show all

How To Fix A Cloudy Swimming Pool

My Pool is Cloudy - Now What?

My Pool is Cloudy - Now What?

My pool is cloudy – Now what?

Imagine waking up on a beautiful day only to see your pool has gone cloudy overnight. It happens. Not only is a cloudy pool annoying, it can be very difficult and time-consuming to get your pool clear again.

In this post we will look at the reasons as to why a pool goes cloudy and how you can overcome the cloudiness without too much drama and time spent. In order to be able to easily and effectively clear the cloudy water, it is important to understand what causes the pool water to go cloudy.

Why does my pool go cloudy?

The environment: Everything that surrounds your pool can cause your pool water to go cloudy. The natural water created by the Bionizer can be easily affected sometimes if the pool water is not in balance. So it isn’t just the people in the pool that have an effect on the water, but also the weather, birds, trees, shrubs, gardens, nearby construction etc.

Water/chemical balance: If your pool water is out of balance, your pool will be more vulnerable to environmental effects. An excessive amount of pool chemicals can cause your pool to get out of balance but also a lack of pool chemicals or lack of pool maintenance. High pH, high total alkalinity and/or deficient calcium hardness levels and phosphates along with sunscreen oils and swimmer waste can produce conditions that cause cloudy water.

Filtration system: Another explanation for cloudy water is a filter that needs backwashing or cleaning, but also other faults in the filter could have occurred.

Body oils and bather load: If you are not using an Eco-Oxidizer or other oxidising device or additive with your Bionizer, bather load, body oils and swimmer waste can cause your pool to go cloudy. Chlorine or chlorine from salt chlorinators burns these oils off the water but, with a pool ioniser like Bionizer, you can choose your own chlorine free oxidising agent (see below for recommended options).

How do I clear my cloudy pool?

1. Balance levels

The first thing that you will want to do is check the levels of pH, total alkalinity, phosphates and calcium hardness and adjust them to the recommended levels as per Snap Pool Balance Chart (page 35 of Bionizer Instructionbook).

2. Check filter

Check your filter equipment. Backwash or clean if needed. There could also be a fault in the filter that needs fixing. Is the filter medium old and or worn?

3. Oxidise the pool water

If you are not using an Eco-Oxidizer or other oxidising device in conjunction with the Bionizer, then the use of a chlorine-free oxidiser such as Hydrogen Peroxide or an Oxy Shock such as one that contains Potassium Monopersulphate should clear the cloudiness. Also some liquid chlorine may be used. Add to the pool late in the day and run the filter for several hours and the water should be sparkling again by morning. The liquid chlorine used should preferably be unstabilised.

4. Add clarifier

If the water remains cloudy after these checks and tricks, then use a compatible clarifier such as Bionizer Blue. A clarifier collects the smaller particles together so they become big enough to be filtered out of the pool water by your filter. For a Bionizer pool, make sure the clarifier you use is Polymer based and that it doesn’t pull metals from the water in your Bionizer pool.

5. Add pool flocculant

Another effective but time-consuming alternative is a pool floc or flocculent. A pool flocculent works by binding the particles together and sending them to the bottom of the pool. This will create clumps of matter on the floor of your pool. This alternative, unlike the clarifier, does not enable your filter to pick up the particles but collects them on the bottom of the pool so you can manually vacuum the matter out of your pool water. Do not use an automatic cleaner but use your pool pump, filter to waste (or backwash) and manually vacuum the pool until the cloudiness is gone. The reason you filter to waste is that otherwise, it will end up back in your pool again. Be aware that this alternative uses a lot of water and you will have to top your pool back up with new water. Ideally, fill the pool to the brim before commencing the vacuuming action.

These are our recommended steps and tricks as to how to get rid of cloudiness in the pool and to get you back in a sparkling and clear pool as soon as possible. Note: If you go to your pool shop to purchase any chemicals you might need, make sure they are compatible with pool ionisers.

Happy Swimming!

Comments are closed.

WordPress Image Lightbox

Customer Reviews


Customer Reviews

Jenny T. (South East Queensland, QLD) 01/2021

Product Review
Our new bionizer pool is a game changer. After 12 years as a Learn to Swim Teacher it is a treat to spend time in our pool and not smell like chlorine. The Fresh Water Pool is always inviting.
We choose a bionizer pool system to avoid the use of chemicals. It is so wonderful to eliminate harsh chemicals from our pool maintenance routine.
The support team are always available and ever helpful with any query we have as new bionizer customers.
Our family of 4 children & 3 grandchildren, all mermaids, love the beautiful bionizer pool. They spend all day in there and never stingy eyes or chlorine smells.
So pleased we made the change!

Stephen English 10/2020

Google Review
We have just been through the third winter with our pool. In January we bought a pHBoss so we now have all three devices. The pHBoss is so good that I have not had to add anything to the pool apart from one dose of buffer since late January. A completely automatic pool! Fantastic! A 31.5 degree pool and we swim in it nearly every morning around 7 am.

Gregory Peck 11/2020

Facebook Review
We highly recommend these products and this company for quality and excellent service. We have been investing in the Bionizer System for two years now and our pool has never looked better or clearer. The low maintenance required now has ensured it has already paid for itself. I am especially happy that we feel safe swimming regularly especially with my wife's medical condition and her rehab time required in pool. No more strong chlorine smell can only be a positive and good for you. You will be really happy. Do it

Joel 02/2021

Product Review
I use my pool every day summer and winter. I am running the Bionizer unit, Eco oxidiser and PH Boss -55,000L pool with glass filter. My pool has never look better since installing, I love that fresh water feeling. Keep your water balanced and let Bionizer do the rest, best investment I have made for our pool.

Paul H (South East Queensland, QLD) 03/2021

Product Review
When my saltwater chlorinator failed after only 3 years, and the second saltwater cell in 3 years failed at the same time, not surprisingly my pool went as green as your front lawn! I thought there has to be something better than this so I did some online research and stumbled across Bionizer's website. I thought this sounds to good to be true. I did lots of research and spoke to Brian whose knowledge about pool water is second to none! Although it was virtually double the price than replacing the saltwater chlorinator and cell, I was attracted by the claims of the virtual eradication of chemicals and significantly less pool pump use which saves in electricity costs. I was also attracted significantly to the claims around the quality of the water with no chemicals in it and the benefits to skin and health of swimming in what would apparently be like drinking water. I bit the bullet and bought the Bionizer complete with the Eco-oxidizer and the PH Boss.

It took about 2-3 weeks, around 50 litres of liquid chlorine, a couple of phone calls and lots of advice and guidance from Brian and a lot of consistent perseverance but we eventually got the pool water balanced and cleared and now it is crystal clear. The Bionizer was installed around mid January 2021 so for the last few weeks, the pool has been clear and looking wonderful. I have done next to nothing since except test copper levels each week and ensure the water remains balanced and that's it! I've not had to do anything else and the claims are true!!

As someone who suffers from chronic urticaria (hives) and other allergies, swimming in chlorinated water was doing nothing for my skin or allergies. Now I get out of the pool and my skin is not irritated. There is no more trademark tackiness of your skin that you get with chlorinated water. This system is simply fabulous!! I am delighted with the results and would strongly recommend it to anyone who wants to kiss goodbye to all those awful chemicals, the endless trips to the pool shop for water analysis, the ever increasing costs of all the chemicals and the hours spent labouring trying to keep your pool water from going green!

Do yourself and everyone who swims in your pool a huge favour and install the Bionizer system. I'm sure you will conclude it will be one of the best decisions you ever made!!!

Robert Rovere 12/2020

Google Review
We first bought a Bionizer at the start of 2019 to try it and recently also bought the Eco Oxidizer to take our commitment to the next level because we were so happy with our purchase. We were astounded at how little maintenance our pool has needed since we added these quality products to the upkeep of our pool. The initial outlay has already paid for itself in full quite easily since.

Visitors even comment on how clean they feel in our pool and they love that there is no chlorine smell on their body or hair. Skin conditions like my eczema are not aggravated and my wife who has MS now feels confident to exercise daily and feel safe about spending all that time in the pool due to the health benefits of using our Bionizer. The pool always looks good and I have attached pictures for you to see for yourselves.

On a personal level the staff at this company are a pleasure to deal with, very caring and compassionate to their customers needs and give excellent service as they are very passionate about health and their products. If you are thinking of investing in these products then you will be very glad you did.