How to Bring Your Green Pool Back to Pristine: Expert Tips from PC Pool Care
If you are searching for reliable pool maintenance South Brisbane, one of the most common issues we are asked to resolve is the dreaded green pool. What was once a sparkling backyard feature can suddenly turn murky, uninviting, and unsafe. A green pool is not only unattractive, it is also a sign of an unhealthy swimming environment. The good news is that with the right approach you can restore your pool to crystal clear condition quickly and keep it that way.
At PC Pool Care, green pool recovery is one of our specialties. In this guide, we explain why pools turn green, the steps to bring them back to life, and how regular maintenance prevents algae from taking over in the first place.
Why Do Pools Turn Green?
The green colour in a pool is almost always caused by algae. Algae thrive in warm water when sanitiser levels are low or circulation is poor. Other contributing factors include:
Low chlorine levels which allow bacteria and algae to multiply.
Poor filtration or circulation caused by a clogged or failing filter.
Unbalanced water chemistry that reduces chlorine effectiveness.
Weather changes such as heavy rain or heat waves that upset the balance.
Organic debris such as leaves, dirt, and grass that feed algae growth.
If ignored, algae can make the pool slippery, damage your equipment, and create health risks for swimmers.
Step 1: Assess the Situation
Not all green pools are the same. Some only have a light tint while others resemble a swamp. Assessing severity is the first step:
A light green shade usually means a mild outbreak.
A dark green or black pool signals a heavy infestation.
Cloudy or murky water may indicate algae combined with organic build-up.
A professional technician can test chlorine, pH, and alkalinity levels to determine the exact cause before treatment begins.
Step 2: Clean the Pool
Before adding chemicals, remove as much debris as possible.
Skim leaves, sticks, and floating matter from the surface.
Vacuum the floor to collect sediment and dirt.
Brush walls and steps to loosen algae clinging to surfaces.
This preparation step reduces nutrients that algae thrive on and ensures treatments work more effectively.
Step 3: Balance the Water
Water balance is crucial. If the pH or alkalinity are outside the recommended range, chlorine will not work properly.
Ideal pH is between 7.2 and 7.6
Total alkalinity should sit between 80 and 120 ppm
Chlorine should remain between 1 and 3 ppm for maintenance, but will be higher during treatment
Balancing before shocking the pool gives the best results.
Step 4: Shock the Pool
Shocking the pool involves adding a concentrated dose of chlorine to kill algae and bacteria.
Use a high-quality chlorine shock designed for swimming pools.
Severe outbreaks may require more than one treatment.
Keep the pump and filter running constantly to circulate the chemicals.
Pools often begin to clear within hours, although complete recovery can take a couple of days depending on the severity of the algae.
Step 5: Run the Filter and Circulation System
Once the shock treatment is added, the filter plays a vital role in removing dead algae.
Run the pump continuously until the water clears.
Backwash sand or DE filters regularly.
Clean or replace cartridges if you have a cartridge filter.
A clean, functioning filter is essential for a fast recovery.
Step 6: Re-Test and Re-Balance
After treatment, test the water again to check chlorine, pH, and alkalinity levels.
Adjust chemical levels back to safe swimming standards.
Add algaecide for ongoing protection if needed.
Check stabiliser levels to ensure chlorine lasts under sunlight.
Step 7: Prevent Future Green Water
Once your pool is clear, prevention is the key to long-term success. Adopt these habits:
Keep chlorine levels consistently between 1 and 3 ppm.
Test the water every week, especially during summer.
Run the filter for 8 to 12 hours a day to ensure circulation.
Brush and vacuum the pool regularly.
Book professional servicing for equipment checks and water balancing.
These steps save you from repeat algae problems and extend the life of your pool equipment.
Why Choose PC Pool Care for Pool Maintenance in South Brisbane?
Restoring green pools can be time-consuming and frustrating for homeowners. At PC Pool Care, we use professional equipment, proven treatments, and years of expertise to deliver results quickly.
One client with a pool that looked more like a pond was amazed when their water turned crystal clear within hours of treatment. That kind of transformation comes from knowing the right approach for each unique situation.
By choosing us, you do not just get a clean pool. You gain peace of mind that the water is safe, balanced, and ready for your family to enjoy. We also provide ongoing pool maintenance South Brisbane so your pool stays in pristine condition all year round.
Final Thoughts
A green pool can be stressful, but it is never a lost cause. By removing debris, balancing the water, shocking the system, and running the filter properly, you can bring your pool back to life. More importantly, consistent maintenance prevents algae from returning.
If you need a one-time green pool recovery or regular servicing, PC Pool Care is here to help. For trusted pool maintenance South Brisbane, contact our team and let us keep your pool sparkling, safe, and ready for every season.