Simple Steps to Cleaning Algae from Your Empty Above Ground Pool

Anyone who owns a home can be proud of how clean their above-ground pool is kept. But when the pool isn’t being used during the off-season, algae can grow very quickly in it. As someone who has tried to get rid of this pesky green problem, I know how frustrating it can be. But don’t worry! In this blog post, I’ll show you how to clean algae out of an empty above-ground pool in a way that works well and gets it ready for the next swimming season.

Prevention is the most important thing. I will talk about how important it is to close the pool for the winter and take care of the cover so that algae doesn’t grow. Next, I’ll show you step-by-step how to get rid of algae, beginning with a full inspection and assessment of your pool. From there, we’ll talk about effective ways to get rid of algae and get your pool back to its original state, like scrubbing, cleaning, and using pool chemicals.

With my useful tips and tricks, you’ll know how to beat algae and keep your pool clean and inviting all summer long.

Steps to Clean Algae from Your Empty Above Ground Pool

Algae that grows in an above-ground pool can look bad and be bad for your health. If you haven’t used your pool in a while and algae have grown in it, you should clean it right away before it gets worse. Follow these step-by-step steps to clean algae out of your above-ground pool when it is empty.

Cleaning Algae from Empty Above-Ground Pool

Step 1: Make sure it’s safe

Before you start cleaning, make sure you are safe by putting on things like rubber gloves, safety masks, and shoes with closed toes. Because algae can irritate the skin and eyes, it’s important to take these steps.

Step 2: Getting the pool empty

Start by emptying the pool of all water. Attach a garden hose to the pool’s drain valve and let the water drain away from the pool area, preferably into a marked drainage area or sewer system. Make sure the water from the drain doesn’t flow into sensitive areas or nearby sources of water to keep the environment from getting dirty.

Step 3: Removing Large Debris

Once the pool is empty, take out any leaves, sticks, or twigs that might have gathered at the bottom. Use a pool net or a leaf rake to pick up the trash and throw it away in the right way.

Step 4: Scrub the walls of the pool

Mix a pool-cleaning chemical or chlorine with water, as directed by the maker, to make a solution for cleaning. Use a pool brush with a long handle to scrub the pool walls well, paying special attention to places where algae is growing. Make sure to clean all the walls and edges of the pool to make sure it’s clean all the way through.

Step 5: Clean the floor of the pool

After you’ve scrubbed the sides, move on to the floor of the pool. Sprinkle chlorine or a cleaning agent over the entire floor of the pool. Give the chemical a few minutes to kill any algae that is still alive. Then, scrub the floor with the pool brush to break up and remove any leftover algae.

Step 6: Cleaning the pool

After you’ve scrubbed the walls and floor of the pool well, it’s time to rinse away the cleaning chemicals and algae. Use a high-pressure nozzle on your outdoor hose to spray water over all surfaces, making sure to get rid of any leftover debris and chemical residue. Pay special attention to corners and cracks, which are often places where algae can hide.

Step 7: Making the water drinkable

To stop algae from growing again, the water must be treated with the right chemicals. Follow the directions on the chemical product you choose for your pool to make sure the water is balanced and clean. Test the water often to keep the right chemical levels and make changes as needed.

Step 8: Regular Maintenance

Set up a regular care plan to keep your above-ground pool clean and algae-free. This means cleaning the pool on a daily basis, testing and balancing the water, and making sure the filtration and circulation systems are working well. Get rid of any trash in the pool as soon as possible so it doesn’t start to break down and feed bacteria.

Step 9: Put a top on the pool

Cover the pool when it’s not being used with a strong cover that fits well. This will help keep dirt out of the pool and stop algae from growing where the sun shines. Make sure the cover is tight so it doesn’t get blown off when the wind is strong.

Step 10: Get help from a professional

If algae keep growing despite your best efforts or if there are a lot of algae in the pool, you may need to call an expert. A professional can clean the pool more thoroughly and give advice on how to keep it clean in the long run.

By following these step-by-step steps, you can clean algae out of an empty above-ground pool and make it a nice place to swim. Make sure to set priorities.

Alternative Methods to Clean Algae from an Empty Above Ground Pool

The last guide talked about a standard way to clean algae out of an empty above-ground pool, but there are other ways you can try. The algae growth can be stopped by using these methods, which may give you different ways to clean your pool or extra tools. Check out the following other options:

Method 1: Using pressure to clean

Pressure cleaning is a strong way to get rid of algae on the walls and floor of a pool. Rent or buy a pressure washer with the right psi number for cleaning your pool. Attach a nozzle with a lot of power and aim the spray at the areas with algae. Move the nozzle in a sweeping manner to loosen and remove the algae from all surfaces. Be careful not to damage the pool cover or any other fragile parts as you do this.

Method 2: Use of enzymes

Enzyme solutions can be a natural way to get rid of algae that is also good for the environment. These methods work without using harsh chemicals because they break down organic matter, like algae. Choose an enzyme treatment that was made just for cleaning pools and follow the directions. Add the right amount to the pool water, and then use the filter system to move the water around. Over time, the enzymes will break down the algae, making it easier to remove by brushing and filtering regularly.

Method 3: Using acid to clean

Acid washing is a more aggressive method that should only be used when all other methods have failed. This method uses a diluted acid solution, like muriatic acid, to get rid of algae spots and growth that are hard to get rid of. When working with acids, you should be careful because they can be dangerous. Wear protective gear and follow the manufacturer’s directions. Apply the acid solution that has been dampened to the damaged areas, scrub them with a brush, and then rinse well. Be aware that acid washing can damage some pool surfaces, so if you aren’t sure, ask an expert.

Method 4: Treatment with a blackout cover

You can try a blackout cover treatment if algae keeps growing even though you clean your pool regularly. This method involves putting on a special pool cover that stops the sun and keeps algae from getting the energy it needs to grow. Most of the time, these covers are made of strong materials that totally block out the sun. Depending on how bad the algae is, put the dark cover on the pool for a few days to a week. During this time, algae won’t be able to grow because there won’t be enough sunshine. Remove the cover, drain any leftover water, and clean as usual to get rid of the algae that has become weak.

Method 5: Using UV to kill germs

UV treatment is another way to stop algae from growing and keep it from getting out of hand. UV sterilizers kill algae and other bacteria in the water by shining UV light on them. Follow the directions from the manufacturer to put a UV sterilizer in the pool’s filtration system. As the water moves through the unit, it is exposed to the UV light. This stops algae from growing because it kills it. For this method to work well, the UV bulbs need to be checked and replaced on a frequent basis.

Before picking a different way to clean your pool, you should think about what it needs and how it is set up. Even though these methods can work, it is important to follow safety rules and the directions from the manufacturer to get the best results. Algae growth can be stopped and an above-ground pool kept clean with regular upkeep and a good water balance.

Preventive Tips to Avoid Algae Growth in an Above Ground Pool

Algae growth must be stopped if you want to keep an above-ground pool clean and attractive. By taking preventive steps, you can make it less likely that algae will take over your pool. Think about the following ways to stop algae from growing:

The right amount of flow and filtration

Make sure the circulation and cleaning systems in your pool are working well. Algae can grow in places where water doesn’t move around enough. Run the pool pump and filter for enough time every day to keep the water moving and treated well.

Regular Maintenance

Set up a regular maintenance schedule that includes skimming the top of the pool, cleaning out debris, and brushing the walls and floor of the pool. By keeping up with upkeep, you can stop the buildup of organic matter, which algae use as food.

Keep the right water balance

Test and balance the water in the pool often to keep the pH, alkalinity, and sanitizer levels at the right levels. When water is out of balance, it can make a place where algae can grow. Use a good water testing kit to keep an eye on the chemical amounts and adjust them as needed.

Startle the Pool

Algae can be kept from growing in the pool by shocking it with chlorine on a regular basis. This process adds a lot of chlorine to the water, which kills any algae spores or growth that might have happened. Follow the directions from the manufacturer for the right amount and number of shock treatments.

Limit your time in the sun

Algae grows best when there is sunshine. Use a pool cover when the pool is not being used to protect it from direct heat. Also, think about planting trees or putting up shade structures around the pool to provide natural shade and cut down on the amount of sunshine that gets in.

Clean pool accessories often

Pool toys, floats, and skimmer bags need to be cleaned and taken care of. These things can have algae spores on them and help algae grow. Wash them regularly with a mild soap or disinfectant to make sure they stay clean and algae-free.

Treatment to keep algae from growing

Use algaecide as a protective measure to stop algae from growing. These treatments can be added to the water in the pool to stop algae from growing and spreading. Follow the directions given by the maker for the right dose and how to use it.

How to Store Chemicals

Pool chemicals should be kept in a cool, dry, well-ventilated place that is out of direct sunlight. Extreme temps and direct sunlight can make the chemicals less effective, so they can’t stop algae from growing as well. Follow the safety rules and keep poisons away from kids and animals.

Regular Water Testing

Test the pool water often to make sure it has the right balance and to find any problems that could lead to algae growth. Regular testing lets you take quick action to fix problems if they arise and keep the pool setting healthy.

Inspections by experts

Think about hiring a professional pool service worker to do regular inspections and maintenance checks. They can check your pool’s state, look for possible problems, and give you expert advice on how to keep your pool in good shape.

By following these tips, you can make it much less likely that algae will grow in your above-ground pool. You can swim in a clean pool without algae if you do regular upkeep, keep the water in the right balance, and take other proactive steps.

How Often Should I Clean My Empty Above Ground Pool to Prevent Algae Growth?

To keep algae from growing in an above-ground pool that is not being used, it is important to clean it regularly. How often you clean will depend on things like the weather, how often you use the pool, and the area around it. As a general rule, the empty pool should be cleaned at least once every couple of weeks, especially during the warmer months when algae is more likely to grow.

Regular upkeep is the most important thing you can do to keep algae from taking over. This means taking things like leaves and twigs off the top of the pool and skimming any floating things. Also, it’s important to brush the walls and floor of the pool often to remove any algae growth and keep it from sticking to the surfaces.

In addition to actual cleaning, it is important to keep the water in the right balance. Check the pH, alkalinity, and sanitizer levels of the water often and make changes as needed. Algae can grow in water that is out of balance, so it is important to keep an eye on and maintain the right chemical levels.

Algae growth in your empty above-ground pool can be kept to a minimum if you stick to a regular cleaning plan and keep the pool in good shape. But it’s important to remember that the cleaning schedule may need to be changed based on things like the local climate, temperature changes, and the general condition of the pool. Stay on top of things and change your cleaning routine as needed to keep your pool clean and algae-free.


Why is it important to clean algae out of an above-ground pool that isn’t being used?

Growing algae in an empty above-ground pool can cause a number of problems. It can make the pool look ugly and not appealing. Algae can also clog the filter system of the pool, making it less effective. Also, algae can put poisons into the water, which can be bad for anyone who swims in the pool. So, it’s important to clean algae out of an empty above-ground pool to keep it looking nice, protect the equipment, and make sure it’s safe to swim in.

Can algae grow in a pool that isn’t full?

Yes, algae can still grow in a pool that isn’t being used. Even when the pool is empty, algae cells can still be in it. When the conditions are right, like when the pool gets sun, water, and organic matter, these spores can grow and spread. So, it’s important to deal with algae growth in a pool that’s not being used to keep it from spreading and becoming a bigger problem.

Can I clean algae out of the pool with things I already have at home?

It’s not a good idea to clean algae out of a pool with regular home cleaners. Household cleaners are not made to be used in pools, and some of them may have chemicals that are bad for the surface of the pool and the surroundings. It’s best to use chemicals made for pools that are made to get rid of algae quickly and safely without hurting the pool or lowering the water quality.

Can I use a power washer to get rid of algae on the walls of the pool?

A power washer can be a good way to clean algae off the walls of a pool. But it’s important to be careful and use the right psi number to keep the pool’s surface and liner from getting damaged. Also, think about what the pool is made of. Some materials may be more likely to get damaged by pressure cleaning than others. Always follow the directions given by the maker and use light sweeping motions to get rid of algae without hurting anything.

Do you have to drain the whole pool to get rid of algae?

It is not always necessary to drain the pool fully to get rid of algae, especially if the algae growth is not very bad. Most of the time, you can get rid of algae by using the right cleaning products, scrubbing the walls and floor of the pool, and keeping the water balance right. But if there are a lot of algae or they keep coming back, draining the pool can give you a fresh start and make the cleaning process easier.

How long does it take to clean algae out of an above-ground pool that isn’t being used?

How long it takes to clean algae out of an empty above-ground pool depends on how bad the algae growth is, how big the pool is, and what methods are used to clean it. In general, it can take anywhere from a few hours to a full day to clean. To stop algae from growing back, it’s important to be thorough and make sure that all noticeable algae and leftovers are gone.

If I cover the pool when it’s not in use, will that stop algae from growing?

When the pool is not being used, covering it can help stop algae growth to some extent. Pool covers act as a barrier, limiting the amount of sunshine that gets into the water and stopping organic matter from getting in. But it’s important to choose a pool cover that fits well and keeps the sun from getting in. Even with a cover, the pool still needs regular cleaning, upkeep, and balancing of the water to stay in the best shape.

Will algae grow back after the pool is cleaned?

Even if the pool is cleaned, algae can grow back if the reasons are not fixed. Algae growth is often caused by water that doesn’t move well, isn’t filtered well, has an unbalanced chemical makeup, or has biological matter in it. To keep algae from coming back, it’s important to keep up with regular pool upkeep, check the water balance, make sure circulation and filtration are working right, and fix any problems that could cause algae to grow.

Can I stop algae from growing without using chemicals?

No, you don’t have to use strong chemicals to stop algae from growing. Algae can be stopped with regular upkeep, good water circulation, and good filtration. Using protective algaecides, keeping the water balanced, and reducing the amount of organic matter in the pool can also help reduce the need for harsh chemicals. In place of harsh chemicals, you can also use natural or enzyme-based solutions to stop algae growth.

Is Cleaning Algae from an Empty Above Ground Pool Different Than Cleaning a Regular Empty Above Ground Pool?

Cleaning an above ground pool may require different techniques depending on the presence of algae. When it comes to an empty pool, removing algae can be slightly easier as there are no water chemistry concerns. However, the overall process of cleaning remains fairly similar to that of a regular empty above ground pool. Thoroughly scrubbing, vacuuming, and using appropriate cleaning agents are still necessary to achieve a pristine pool.

Final Thoughts

Algae needs to be cleaned out of an empty above-ground pool to keep it clean and inviting for swimming. By taking the right steps and using effective cleaning methods, like brushing, using chemicals made for pools, and keeping the water in the right balance, you can get rid of algae and keep it from coming back. Algae can be stopped from getting hold in the first place by keeping up with maintenance and cleaning.

The algae growth can also be stopped in different ways by using different methods and taking preventive steps. Remember to put safety first, follow the advice from the manufacturer, and get help from a professional if you need to. By taking steps to stop algae from growing, you can have a sparkling clean above-ground pool that looks nice and is safe to swim in.


Hi, I'm Asim! I love giving you cleaning guides, tips and tricks that will make your place sparkle and shine. Through years of practice, I've learned effective ways to clean and can't wait to help you. From tough spots to general cleaning, I can help you. Come along with me on this cleaning adventure, where I'll give you tips and tricks to make your cleaning process easier. Let's work together to make clean haven.

Leave a Reply

Your email address will not be published. Required fields are marked *