How to Clean a Green Pool?

Written by Jason Prior

January 19, 2022

Are you frustrated and wondering how to clean a green pool? Well, you have come to the right place. In this article, you will learn everything about pool maintenance and pool care.

When you own a swimming pool, the goal is to enjoy crystal-clear water without any disturbance. Unfortunately, most people cannot enjoy a tension-free swimming experience because of the green and dirty water.

Keep reading to learn possible reasons for the green pool issue and how to eliminate them.

Possible Causes of the Green Pool

Let’s start with the most basic question: why your pool has green water?

Well, there are several factors that affect your whole swimming experience. If you are encountering green pool water, it is surely caused by algae.

Here are the top 5 reasons why you are facing pool algae in your swimming pool:

Insufficient Filtration – If you don’t run your filters regularly, it will increase the organic debris in the pool water.

Higher Phosphate Level – Phosphate is known as a food for algae. If your pool has more than 500 parts of phosphate per billion, you will face green water.

High pH Level – pH level can also cause the green pool issue. The ideal pH for a pool is between 7.4 to 7.6.

Too Much CYA – Cyanuric Acid, or CYA, is a stabiliser and water conditioner that stops chlorine from staining in the sunlight. If the CYA level of your pool is more than 80, the chlorine won’t be able to do its job properly.

Not Enough Chlorine – Pool algae is directly connected with chlorine. If your swimming pool does not have sufficient chlorine, it will grow algae and cause numerous problems.

Now that you know the common causes of the green pool, it’s time to learn how to fix a green pool? Remember that if you don’t get rid of algae as soon as possible, it can cause health problems, such as irritations, itching, red eyes and more.

So, without further ado, let’s learn how to clean a green pool and spa in easy steps:

How to Clean a Green Pool – Step-by-Step Guide

No one likes a green pool. Algae growth and murky water is disgusting problem. However, unfortunately, every single pool owner faces this problem at least once in their life.

Luckily, you don’t have to worry much because you can easily get rid of green pool water. To help you out, below, we have mentioned an easy step-by-step method of how to clean the bottom of the pool and attain sufficient chlorine levels:

Get Cleaning Products

First of all, you’ll need cleaning chemical and some products to clean a green pool. These products have numerous functions and benefits. However, stay away from cheap algaecide because it does more harm than good.

To clean a dirty pool, you’ll need the following pool chemicals and tools:

Powder or Liquid Chlorine

Chlorine Tablets

Shock Chlorine

pH Chemicals


Pool Vacuum

Water Testing Kit

Sand Filter

These products will help you kill all the bacteria and algae in hours and get crystal clear water. If you don’t have access to a pool cleaning store, you can simply get professional help.

When it comes to pool maintenance in Brisbane, no other pool maintenance service can beat Brisbane Pool Care. With the affordable pricing, the professional team at Brisbane Pool Care is both reliable and experienced.

Remove the Organic Debris

The next step is the removal of all organic debris from your pool, such as insects, branches, leaves and more. This step is quite important because organic debris can increase the number of bacteria in a pool.

By removing the organic debris, your pool’s filtration system will work without any problem. Plus, it will also reduce algae growth that can lead to a green pool.

Adjustment of Pool Water Chemistry

As mentioned earlier, the high level of pH and phosphorus and low level of chlorine can increase the algae in a pool. So, if you want to kill all the algae and filter your pool, you must test and adjust your pool water chemistry.

To get a benchmark pool water chemistry, you will need a pool testing kit. A pool testing kit allows you to solve problems related to filter, alkalinity, pH, chlorine, acid demand, and bromine.

When you want, you can test your pool water by submitting a sample to your local pool cleaning shop. Keep in mind to get the sample from the bottom of the pool to get more accurate results.

Properly Shock your Pool

Before cleaning pools, you must know how to shock a swimming pool properly with granular chlorine. Even though this process is known as “Shock a pool,” it does not require electricity or dangerous chemicals.

Basically, you are just increasing the chlorine levels of a certain pool from the normal level. This approach will kill all the bacteria and filter the pool water.

If you shock your pool correctly, the water will be turned cloudy. However, it should clear up within the next 24 hours. We recommend shocking swimming pools at night with pH levels of 7.4 or 7.4 for optimal results.

Pool Filter & Vacuum

Once your pool has been shocked, and the bacteria and algae are dying because of the algaecide or the shock, it’s time to vacuum your pool with a sand filter. You should vacuum your pool before using a filter.

This approach will make the job easier and smoother on the diatomaceous earth, cartridge, or sand filter. If you don’t know how to use a vacuum, pump, pool filter, pool cleaning chemical, you could hire Brisbane Pool Care – a professional pool maintaining service that can replace your old filter and pump within 24 hours.

Offer Proper Maintenance

The final move is to properly maintain your pool daily and weekly. It’s important you backwash and shock your pool on your own or hire pool backwash services weekly to avoid the green pool problem.

Use pool chemicals, clean the bottom of the pool and spa, and utilise a filter and vacuum regularly to kill all the bacteria and algae. Keep reading to learn how you can keep swimming pools clean after some hours of hard work.

How to Properly Manage a Swimming Pool on a Regular Basis?

Most pool owners don’t know how to maintain a swimming pool effectively. As a result, they encounter green pool water more often. If you don’t want to spend a whole week cleaning a pool, you must invest your precious hours regularly.

Here are some instructions that you should follow to protect your pool from algae and bacteria:

Use Pool Covers – To protect your pool from organic debris, particles, and several other organisms, you can use pool covers. Plus, pool covers will prevent the sun from blooming algae spores that are already in your pool.

Maintain Healthy pH Levels – A healthy pH level can protect yourself as well as the pool from numerous problems. You should test your pool water regularly to obtain an ideal pH of 7.4 or 7.6.

Vacuum and Brush – Scrub the walls, floor, valve, and surface of your pool after every 24 hours with a brush to remove algae and other particles. You can also use a well-known cleaning chemical and filter to clean the interior of a swimming pool.

Check Pump and Filter Frequently – Algae generally grows in stagnant water. Therefore, use pumps, salt, filters, and cleaning liquid every week to attain correct alkalinity and clear water.

Final Verdict

A green pool contain algae that is both disgusting and harmful to your health. Therefore, swimming pool owners must know how to get rid of the green pool.

The above-mentioned method will help you kill algae and attain crystal clear water in no time. To avoid the green pool problem, you should regularly test your water, add salt, and clean your pool’s surface with a brush. If you need a pool pump repair, look no further than Brisbane Pool Care.

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