How To Get Rid Of Green Algae In Pool-Shock, Control, Kill and Clean (2021)

It is highly likely that you might suffer from a skin infection if you enter a pool infested with green algae.

Several strains of green algae in pool produce toxins and you can even get respiratory diseases and diarrhea.

Moreover, algae infestation also degrades the look of the swimming pool with yucky green pool water and you may have to spend a hefty amount on cleaning it.

This is the reason why you must take pro-active measures to get rid of algae thriving inside the pool.


Basics about green algae in pool infestation

There are various reasons due to which your pool might have an unwanted infestation of pool algae.

Toys and swimming costumes are considered as the prime culprits that can transfer algae spores to your swimming pool.

It would be wise if you take a shower before you swim in the pool, if possible, and wash swimming costumes occasionally with hot water.

You should also take extra care of your pool water during the rainy season as it is the optimal time for pool algae spores to thrive.

Techniques and tricks to get rid of pool algae

There are several tips available with the help of which you can easily get rid of the pool algae.

You can either employ fully automated machines or can handle the cleaning process manually.

Some of the best practices to get rid of pool algae are as follows.

Shock your pool to kill algae

Indeed, it is considered as one of the best techniques with which you can clear any algae problem as well as its spores.

You need to use an appropriate amount of chlorine; mostly it is dependent on the overall size of the pool and water chemistry.

For an average size pool, you need to use 7.5 liters of chlorine for about 3 days, if you have a big algae problem.

Green Algae In Pool
Pool in the garden with green algae

Clean pool algae from the surface with a brush 

It would be wise if you scrub the surfaces of the pool, most importantly the nooks and crannies with the help of a long bristled brush.

This process will loosen the grip of algae spores and you can easily either drain them or expel them with the outlet hose.

Clean the filter to get algae out of your pool

You can even take a pro-active measure by cleaning the filter of the pool once a week to get rid of algae.

A dirty filter will increase the pH level of the swimming pool which makes it optimal for algae in pool water to boom.

Along with cleaning the filter, you also have to rotate the water of the pool and increase the temperature.

These processes will prevent most types of algae from growing inside your pool in the first place.

Maintain cleanliness to avoid green algae in pool

Indeed it is a pro-active measure that will help you in preventing the growth of algae spores in the first place.

You need to clean the swimming costumes and toys if you have used them in any natural water reservoir or at the beach.

Natural water bodies have an ample amount of algae that can easily transfer to your pool if care is not taken.

Pressure clean the surfaces to avoid green algae in pool

By using a jet stream you can clean the surfaces, walls, and the corners of the swimming pool.

This process is considered cost-effective and you do not even have to use chemical substances.

Use an automated vacuum head for getting rid of algae in pool

In case your pool is suffering from a lot of algae, you should use an automatic vacuum head.

This instrument is easy to use and saves you from hard manual work.

Removing algae from pool – common problems

You must fix several issues related to algae infestation before you step inside the pool for a swim.

With the help of these effective measures, you can make a pool free of any spore that can cause skin infection and several respiratory ailments.

Bad odor due to algae in pool

This is the most common problem which you have to face when your pool gets infected with algae whether it’s green algae, black algae, or pink algae.

In such a condition, it would be wise to shock your pool and drain the water.

Once the water is drained completely, you can either scrape the algae manually or use a jet stream or vacuum head.

High repair cost – pool algae treatment

In most cases, damage done by algae might cost you a fortune to fix.

Thus, it is essential to take pro-active measures by cleaning the pool lining with chlorine tabs or by warming and rotating the pool water.

A decrease in oxygen content due to green algae in pool

The infestation of algae also reduces the oxygen content in the pool water, due to this; you need to maintain the proper pH level beforehand.

You can either use bleaching powder or liquid chlorine for this process, to maintain the chlorine levels.

Thus, the pH of the pool will decrease and algae spores won’t be able to grow.

A high concentration of algae in the pool

If you do not clear the algae in time you might even have to deal with a high level of algae on the pool surface.

High algal concentration will cause damage to the structure of the pool and there is a possibility that you may have to spend a large amount on repairs.

Effective ways to clean algae in pool

There are several ways you can safeguard your swimming pool from black algae, pink algae, or mustard algae infestation.

The most common and easy to employ methods are given below.

Maintaining the shock level – bleach in pool for algae

Indeed it is considered as one of the most effective, easy to undertake, and quick ways to get rid of algae spores from your pool.

You need to add an adequate amount of chlorine inside the pool as per its overall size.

For a mid-sized pool, the proper chlorine level should be about 7.5 liters.

Brush it up to get algae out of pool

Yes, if you have a pool that is light green, you are required to brush the walls, floor, and corners with the help of a brush.

See to it that you own a long bristled brush, most preferably an aluminum brush since it is waterproof.

Once the brushing process is over, you have to drain the pool and clean the filter thoroughly.

It is also recommended to check the alkalinity of the pool once the preliminary cleaning is done, along with the overall water chemistry.

In case the pH level is high, you need to add chlorine tablets or liquid chlorine to the pool water. It should be clean in 24 hours.

Drain the pool with a backwash for removing algae from pool

If the pool is heavily clouded with black algae, pink algae, or mustard algae, you need to just drain the water before getting started.

For this purpose, you can either use an outlet hose or can drain the water of the pool in the initial step.

You are supposed to add bleaching powder to the pool and monitor whether the pH level is around 7.2 or not.

Tools that you can use to kill algae

There are different types of automatic and manual tools that you can use while getting rid of algae from your pool.

Though every tool offers a few unique features, the most common ones are as follows.

Liquid chlorine

In case you want to clean your pool within 24 hours, liquid chlorine is the best option.

You just have to shock the pool with an appropriate amount of chlorine and restore the optimal chlorine levels within 24 hours, and this will make the water acidic and algae spores won’t be able to survive.

Automatic vacuum head

With the help of an automatic vacuum head, you can clean the corners, tile seams, and walls of the pool effortlessly.

It is considerably easy to clean using vacuum heads as they have a transparent body.

Thus, you can remove the algae and other debris from time to time when full.

Telescopic pole

Indeed it is considered as one of the most essential tools that you can use during the cleaning process of the pool.

Telescopic poles help you in removing excess debris and spores that are floating on the surface of the water.

This process, in the long run, helps you to save on the consumption of liquid chlorine.

When the amount of algae and debris is less, even a lower amount of liquid chlorine or bleaching powder will help you to shock the pool.

Aluminum brush

A long bristled brush made of aluminum is waterproof, and this will make sure that cleaning the black algae, pink algae or mustard algae will be easy.

The bristles of these brushes are durable, yet they do not exert much pressure on the surface of the pool.

Thus, you can make sure that you don’t damage the overall look of your pool while cleaning it.

Jet stream generator

A jet stream generator, on the other hand, cleans the surface of the pool without the use of any hard solution.

Thus, you do not have to worry about causing any damage to the surface of the swimming pool.

Green Algae in Pool – Frequently Asked Questions

What causes green algae in the swimming pool?

Various things can lead to an algae infestation in your pool whether it’s black algae, mustard algae or another type, like dirty swimming costume and floating toys.

Moreover, algal spores might also be transferred by your pets.

Can you swim in a pool with algae?

It is recommended not to swim in a pool that is contaminated by algae as you might get several infections.

Does shock kill algae?

Yes, when you add a high quantity of chlorine in the swimming pool, it does kill the algal strain as the pH level decreases. It normally only takes 24 hours or less.

Can algae in a pool hurt you?

Algae won’t cause you any physical harm, but there is a possibility that you might get several infections.

How to fix pool water that is green?

There are several ways to fix this problem. Draining the water and scrubbing the surface either by brush or jet stream are recommended.

You can even clean the pool by shocking it with the help of a high amount of chlorine.

How to clean a pool that is green?

First, you have to shock the pool and thoroughly drain the water. After this, you can either use a brush or jet stream to get rid of black algae, mustard algae, etc.

You have to refill the pool and check the pH level. In case it is higher than 7.5, shock the pool once again and check the pH level.

Why is my pool green?

If your pool has turned this color, there is a possibility that it might be infested with pool algae.

You need to undertake a thorough cleaning process and check on the alkalinity to prevent further damage.

How to remove algae from the pool?

You can either use algaecide or shock the pool with the help of an adequate amount of liquid chlorine.

This process will make sure you get the desired results.

How to clean an above ground pool?

In the initial stage, you are required to drain the water of the pool. After this, scrub the surface thoroughly with the help of a brush.

Special care should be taken while you are scrubbing the corners and ladder of the pool.

How to clean a pool with a sand filter?

Initially, you are required to clean large algae from the pool and shock it with the proper amount of liquid chlorine.

In the next step, you should run the sand filter after proper backwashing.

The process of backwashing will help you to clean your pool quickly.

How much liquid chlorine to shock a pool with algae?

The amount of liquid chlorine truly depends upon the size of your pool.

If you have a mid-size pool, it would be appropriate to use about 7.5 liters of liquid chlorine.

What can cause a pool to turn green?

Several reasons can cause your pool to turn green, like metal contamination or an infestation of green algae.

You need to take proper steps to fix either of the problems.

How to turn pool water blue fast?

Shocking the pool with the use of the right amount of liquid chlorine will help you to get a clean pool in a relatively short time.

How to clean a dirty pool?

You can use several types of equipment to clean a dirty pool, such as a long bristled brush, liquid chlorine, vacuum heads, jet stream, etc.

How to get rid of algae in the pool naturally?

In case you do not want to use hard chemicals in the pool, baking soda is one of the most reliable solutions.

This compound will decrease the pH level of the pool and that will make a hostile environment for green algae to survive.

How does algaecide work?

Algaecide combines with chlorine molecules and enters inside the cells making them burst open.

This process helps you to get rid of the algal strain infestation.

How long after adding algaecide can you swim?

You are expected to wait for about fifteen to twenty minutes after you’ve added algaecide in the pool.

How to fix a green saltwater pool?

In the beginning, you are supposed to clean the upper layer of the pool and take out the contents of the skimmer basket.

You have to use liquid chlorine and backwash the pool’s filter, and check the pH of the pool.

If the pH is still high, you are required to repeat the process once again.