How to Clean A Green Pool

How to Clean a Green Pool: A Step-by-Step Guide

A green pool is never a welcome sight, but it’s a common issue that can be fixed with the right approach. If you’re dealing with a pool that has turned green, don’t worry—this guide will walk you through the process of restoring your pool water to its crystal-clear state.

Why Does a Pool Turn Green?

A green pool is usually the result of algae growth, which occurs when your pool’s chemical balance is off. The most common cause is insufficient chlorine. This can happen for several reasons:

• Heavy pool usage, leading to chlorine depletion.

• Irregular chlorine dosing.

• An imbalance in pH levels, preventing chlorine from working effectively.

Since there’s no one-size-fits-all approach to treating a green pool, the first step is to test your water.

Step 1: Test Your Pool Water

A computerised water test like the ones from your local Poolwerx is essential to determine the cause of your green pool. The test results may reveal issues such as:

• Low chlorine levels.

• pH imbalance.

• Equipment malfunction, such as a faulty chlorinator.

If an equipment issue is detected, it’s best to contact a professional pool technician for an onsite assessment.

Step 2: Treat Your Pool with the Right Chemicals

Once you have the water test results, purchase the recommended chemicals specific to your pool’s needs. Then, follow these steps:

1. Add chlorine, algaecide, and flocculant to three different areas of the pool.

2. Set your filtration system to recirculate to help distribute the chemicals evenly.

Step 3: Brush and Filter

• If you have a cartridge filter, remove the filters before proceeding.

• Use a pool brush to scrub the walls and floor of the pool to dislodge algae.

• Leave the filtration system running for at least six hours to allow the chemicals to work.

Step 4: Allow the Debris to Settle

• Turn off the filtration system for 12 to 24 hours (or 4 to 6 hours if using a fast-acting flocculant).

• Once the debris has settled at the bottom of the pool, vacuum to waste to remove it.

• Top up the pool water to restore normal levels.

Step 5: Final Water Test and Balancing

• Conduct a final computerised water test to check the balance of your pool chemicals.

• Add any required balancing chemicals to restore proper levels.

• Resume normal filtration, and your pool should be back to clear, swimmable condition!

Additional Tips for Preventing a Green Pool

• Don’t rely on smell: A strong chlorine smell doesn’t always mean there’s enough chlorine—it could indicate the chlorine is not working effectively.

• Always have a waste line available when using a flocculant to ensure proper debris removal.

• Wear personal protective equipment (PPE), including gloves, safety glasses, and protective clothing, when handling pool chemicals.

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