Quick Steps to Clean Your Salt Water Pool That Is Green

A green saltwater pool can be frustrating for pool owners, but don’t worry – you can restore its clarity with the right approach and effort. Green saltwater pools are usually green because of algae growth. Algae can grow in different conditions like low chlorine, imbalanced water, poor circulation, or organic debris.

In this guide, we will explain how to clean and maintain a green saltwater pool. To revive your pool, you need to identify why algae grows, treat it with shock treatments, balance the water chemistry, and maintain good filtration. Follow these guidelines to clear the water and prevent algae outbreaks in your saltwater pool, so you can enjoy a relaxing swimming season.

Why Did My Saltwater Pool Turn Green?

Your pool turned green because of algae growth. Algae are tiny plants that can get into your pool from wind, rain, or swimmers. Algae growth is caused by different factors.

Low Chlorine Levels

If your saltwater pool lacks chlorine, it can’t sanitize the water properly. Chlorine kills bacteria, viruses, and algae as a disinfectant. Low chlorine levels can cause algae to grow quickly and make your pool water green. Possible causes of low chlorine levels in pools include heavy usage, high temperatures, or issues with salt chlorination systems.

Poor Water Circulation

Good water circulation is important for a healthy pool. If your pool’s circulation is poor or there are areas where water doesn’t flow well, algae can grow there. Algae like stagnant water, so they can grow in corners, steps, and behind ladders where there is poor circulation.

Water Chemistry Imbalance

Balancing water chemistry is crucial for pool health. Changes in pH, alkalinity, and other factors can promote algae growth. Algae thrive in high pH water. Imbalanced alkalinity can make your pool water unstable and prone to algae.

Organic Contaminants

Leaves, grass, insects, and other things that get into your pool can feed algae. Organic contaminants in water release nutrients that feed algae. Contaminants can cause algae blooms if not removed regularly and if the pool’s skimmer and filter systems are not working well.

Sunlight Exposure

Algae need sunlight for energy through photosynthesis. Sunlight can make pools grow algae, especially when the water is warm and the chemicals are not balanced. Using pool covers or shading your pool during sunny periods can help reduce this issue.

To fix the green color in your saltwater pool, treat the algae and fix the root causes. To prevent algae outbreaks and keep your pool water clear, understand these factors and take specific steps.

How to Clean Your Salt Water Pool That is Green: Step-By-Step Guide

Cleaning a green saltwater pool is harder than a chlorine pool due to algae growth. Here’s a simple guide to cleaning a green saltwater pool:

How to get rid of green in salt water pool

Prioritize Safety

Before cleaning your green saltwater pool, prioritize safety. Wear gloves, goggles, and proper clothing for protection. Using pool chemicals and dealing with algae can be dangerous, so it’s important to take precautions to stay safe.

Test and Balance Water Chemistry

Test your pool’s water chemistry with a reliable test kit. Test pH, chlorine, and alkalinity. It’s important to keep these parameters in the right range for saltwater pools. The ideal levels are: Maintain pH between 7.2-7.6, free chlorine levels at 1-3 ppm, and total alkalinity at 80-120 ppm. Balancing these factors is important for effective cleaning.

Shock the Pool

To clean a green saltwater pool, use a saltwater pool shock treatment. Follow the manufacturer’s dosage guidelines for your pool’s size. This treatment will increase chlorine levels in your pool, getting rid of algae.

Clean with a Brush and Vacuum

Scrub your pool walls and floor with a pool brush. Focus on areas with limited water flow, like corners and steps. The aim is to remove the algae and make them float in the water. After brushing, use a pool vacuum to remove debris and dead algae, preventing them from settling on the pool surfaces again.

Filter and Distribute

Keep water circulating during cleanup. Run your pool’s filter constantly until the water is clear. Also, clean or backwash the filter regularly for the best efficiency. Filtration removes particles and contaminants from water, helping to clean it.

Algae Treatment (optional)

Use a saltwater pool algaecide. This step is optional but can help prevent algae growth. Follow the instructions for dosage and application from the manufacturer. Algaecides help keep your pool water free from algae.

Repeat if needed

If your pool water stays green for a day or two, you might need to shock it again to make sure all the algae are gone. Watch the water closely and act quickly if necessary to speed up cleaning.

Monitor and Maintain

Regular monitoring and maintenance are crucial for successful cleaning. Keep checking the water chemistry regularly and make adjustments as needed to maintain balanced pool water. Keep your pool clean by regularly skimming the surface, emptying the skimmer basket, and quickly removing any debris.

Be Patient

Green pool water is frustrating, but be patient during cleanup. It could take a few days to a week for the water to clear. Consistency and sticking to the maintenance routine are important for a clear pool.

Prevent Algae Growth

To prevent algae blooms in your saltwater pool, maintain it regularly. To keep your salt chlorinator working well, remember to maintain water chemistry, circulate and filter properly, and use a salt cell cleaner to prevent scale buildup. Stay proactive for a clear and inviting pool all year.

To prevent algae growth, remember to keep your pool’s water chemistry balanced and perform regular maintenance. If the problem continues or is serious, get help from a professional pool maintenance service.

Are there any Alternative Methods to clean the Salt Water Green Pool?

Yes, there are other ways to clean a green saltwater pool. Some pool owners have different strategies than the one I described earlier. Here are some other options you can think about:

Enzyme Treatment

Enzyme pool cleaners are eco-friendly and combat green pool water. These products have enzymes that break down and digest organic contaminants, like algae and other microorganisms. Enzymes boost your pool’s natural cleaning abilities.

Follow the manufacturer’s instructions for enzyme treatments based on your pool’s size. Enzymes work slowly, so it may take time to see clearer water. This method is gentle on your pool’s surfaces and equipment, which is preferred by some pool owners who worry about harsh chemicals.

Clarifying Flocculants

Flocculants, also called clarifiers, are chemicals that make particles in pool water stick together. This is called flocculation. Flocculants help your pool’s filter catch and remove small particles, like algae, by clumping them together.

Follow the flocculant’s instructions carefully. Add flocculant to the pool water to make particles settle at the bottom. Vacuum the pool floor after letting it settle for a few hours or overnight. Note: This method may require more frequent filter cleaning to keep your pool clean.

Manual Cleaning with a Net

To handle small algae outbreaks or regular maintenance, manually clean with a pool net or skimmer. It’s practical and affordable. This method removes algae and debris from the water and pool bottom.

Use a net or skimmer to remove algae and debris from the pool. Focus on areas with poor circulation, like corners and steps, as algae tend to gather there. Manual cleaning is hard work and takes a lot of time, but it can help with small algae problems and keep your pool clean in between regular treatments.

UV Sterilizers

UV sterilizers are a high-tech solution for stopping and treating algae growth in saltwater pools. These devices use UV light to kill microorganisms in pool water. UV sterilizers prevent algae growth by disrupting microorganisms’ reproductive process.

You might need a pool professional to install a UV sterilizer in your pool’s system. These devices help keep pool water clear and reduce the need for excessive chemical treatments. UV sterilizers are eco-friendly and effective for controlling algae and keeping water clear.

Get Advice from a Pool Expert

If your green saltwater pool is still a problem after trying different methods, it’s a good idea to ask a pool professional or certified technician for help. Experts can assess your situation, including water chemistry, pool equipment, and algae infestation.

A pro will suggest the best treatment for your pool based on its specific situation. They can also check your pool equipment, like filters and circulation systems, to make sure they’re working properly and prevent algae growth.

In summary, there are different ways to clean a green saltwater pool, each with its own pros and cons. Choose a method that suits your pool’s needs and your preferences for maintenance and chemicals.

How Long Does It Take to Clear a Green Saltwater Pool?

The time to clear a green saltwater pool varies based on factors like algae severity, cleaning effectiveness, and pool care routine. It usually takes a few days to a week or more to clear your pool water.

For milder cases, when the green color is caused by a small imbalance or algae bloom, you can clear the pool quickly. Using shock treatments, algaecides, and regular brushing and cleaning can speed up the process.

For larger algae problems or if the underlying issues like poor circulation or water chemistry imbalances aren’t fixed, it will take longer and require more effort to clear the pool. Stay patient and persistent in these situations.

During cleanup, monitor water quality, test and adjust chemicals, clean or backwash the filter, and ensure good water circulation. Continuing these efforts is important to keep algae from coming back, even when the water looks clear.

To clear a green saltwater pool, be proactive and consistent with maintenance. Address the root causes of algae growth. By following best practices, you can have clear water in saltwater pools.

Preventative Measures to Stop a Saltwater Pool from Turning Green?

You can take steps to prevent your saltwater pool from turning green.

Filtration and Circulation

Your pool’s filter helps stop algae from growing. The filter removes debris and particles from the water, making it less suitable for algae. Make sure your pool’s filtration system is the right size and runs long enough to keep the water clear. Good circulation prevents stagnant water for algae growth. Use a variable-speed pump to adjust the circulation speed for your pool.

Water Chemistry Balance

Balanced water chemistry is important for pool maintenance. Test your pool water weekly and adjust pH, alkalinity, hardness, and salt levels as needed for saltwater pools. Balanced water prevents algae and helps chlorine kill algae spores.

Shock Therapy

Sometimes, even with good upkeep, your pool may need a shock treatment to get rid of organic contaminants that cause algae to grow. Use a non-chlorine shock or a saltwater pool shock treatment. Follow the instructions for dosage and application from the manufacturer. Make sure the pool water circulates well during and after treatment.

Algae Control

Algaecides are chemicals that stop or kill algae. Use algaecide regularly in your pool maintenance, especially in warmer months when algae can grow. Follow the product instructions closely, as certain algaecides have specific dosage and timing requirements.

Brushing and Cleaning

Clean the pool walls, floor, and surfaces regularly to prevent algae growth. Algae can stick to surfaces and create a protective layer that makes them hard to treat with chemicals. Use a brush or vacuum to remove algae and debris from the pool. Clean or backwash the filter to remove any trapped particles.

Pool Cover

Get a good pool cover that fits well when not in use. A pool cover stops leaves, bugs, and dirt from getting in the water, which helps prevent algae growth. It also blocks sunlight, which algae need for photosynthesis. Keep the cover clean and debris-free.

Monitor Sun Exposure

Algae like sunlight. Trim or move plants and trees that shade the pool to reduce algae growth. Be careful not to block airflow, which can prevent humidity problems.


Regular pool maintenance prevents algae growth. Backwash the filter, clean skimmer and pump baskets, and check pool equipment for leaks or malfunctions. A well-kept pool system runs efficiently to maintain clear and balanced water.

Reduce Organic Contaminants

Please shower before swimming to prevent adding contaminants like sunscreen, sweat, and body oils to the pool. These substances help algae grow.

Water Level

Keep your pool’s water level right. Excess rainwater or dilution can disrupt water chemistry, promoting algae growth. Use a water-level marker to monitor and adjust the water level as needed for your pool. Keep it within the recommended range.

Follow these steps to keep your saltwater pool clean and algae-free for a better swimming experience.

Can I Use Regular Bleach to Clean My Green Pool?

Using bleach to clean a green pool is common and affordable. Bleach kills algae and bacteria in pools, making the water clear again. However, it’s important to consider safety and efficiency.

Check the bleach label for sodium hypochlorite as the active ingredient. Avoid additives like scents or thickeners that can harm the pool. The bleach-to-water ratio varies based on algae severity and pool size. Start with 1 gallon of bleach per 10,000 gallons of pool water and adjust as needed.

To mix the bleach properly, distribute it evenly on the pool surface and circulate the water with the pump. Also, a pool brush can remove algae from the pool walls and floor. Wait a few hours or overnight after adding bleach before retesting chlorine levels in the water.

Regularly monitor and adjust pH and chlorine levels for effective cleaning. Wearing protective gear, following guidelines, and keeping the pool closed until chlorine levels are normal is important for safety. Be careful not to use too much chlorine, as it can harm the pool equipment and surfaces.

In summary, bleach can clean a green pool, but use it carefully and follow guidelines for safety. When used right, it can turn your green pool into a clear oasis for swimming and relaxing.

How Does a Pool Screen Help Clean a Green Pool?

A Pool Screen Enclosure helps clean algae from pool water, especially for green pools. These structures help maintain pools and make the water clear and inviting.

A pool screen enclosure keeps out dirt and debris. It blocks leaves, debris, insects, and other organic matter from getting into the pool. The enclosure prevents algae growth by keeping these elements away. Limiting organic materials in the enclosure prevents and combats green water by stopping algae growth.

Pool screen enclosures also provide shade to the pool area. Contrary to expectations, this benefits pool owners. Algae need sunlight for growth through photosynthesis. The enclosure blocks sunlight, making it harder for algae to grow and turn the water green.

Pool enclosures improve air circulation in addition to providing shade. This reduces pool humidity, making it harder for algae to grow. Algae like warm, still water. But better airflow keeps the pool cooler and with more oxygen, which stops them from growing.


Is green pool water safe for swimming?

Avoid swimming in green water in a seawater pool. Green color indicates algae growth, which is harmful to divers’ health. Algae can make pool water slippery and look bad. Certain algae produce toxins that can irritate the skin, eyes, and cause health issues. Don’t swim in green water until it’s treated and confirmed safe.

Don’t swim in a green saltwater pool. Green algae is harmful to divers. Algae can make pools unsafe and unattractive. Certain algae produce toxins that can harm your skin, eyes, and overall health. Wait for green water to be cleaned and checked before swimming.

Why do algae grow in saltwater pools and make them green?

Algae in saltwater pools is mainly due to water chemistry and the environment. Algae spores can get into your pool through the air, rain, wind, or swimmers. If the pool water isn’t clean, circulating well, or has imbalanced pH and chlorine levels, it’s good for algae to grow. Sunlight is important for algae because they use it for photosynthesis. When these factors align, algae can quickly multiply, making the pool water turn green.

How to test green saltwater pool water for imbalances?

Testing your green saltwater pool is important for identifying and solving issues. Use a testing kit or take a water sample to a pool store for analysis. Important parameters to test include pH, alkalinity, calcium hardness, salt levels, and chlorine or bromine levels. These tests will help you find imbalances in your water chemistry that may cause green color and algae growth. After getting the test results, you can fix the water’s balance.

Can I use regular pool chemicals for a green saltwater pool?

Use proper saltwater pool chemicals for treating a green pool. Saltwater pools have different chemistry than chlorine pools, so using the wrong chemicals can cause more issues. Search for products that work with saltwater, such as shock treatments, algaecides, and pH-balancing products. Follow the instructions and dosage recommendations from the manufacturer to fix green water in your saltwater pool.

Does a saltwater pool turn green after rain or storms?

Saltwater pools can turn green after rain or storms if the water chemistry is already imbalanced. Rainwater can contaminate and dilute pool water, affecting its chemical balance. Storms can bring debris and organic matter into the pool, which helps algae grow. To prevent or fix this issue, test and rebalance the water chemistry after heavy rain or storms. Make sure the pool’s filtration system is working well to remove debris quickly.

What are the signs of algae in a saltwater pool?

Algae in a saltwater pool can cause visible changes in water’s appearance and texture. Common signs of water issues include green or discolored water, cloudy or murky appearance, and slippery or slimy texture. In severe cases, you may see algae clumps or debris in the pool.

Can I use bleach to treat algae in my saltwater pool?

Bleach with chlorine is not recommended for treating algae in a saltwater pool. Bleach can have varying chlorine levels and additives that can disrupt your pool’s salt chlorination system. Use algae treatment products made for saltwater pools for better safety and effectiveness.

How often should I backwash my pool filter while cleaning?

When cleaning a green saltwater pool, you may need to backwash the filter more often. Monitor the pressure gauge on your filter system. When the pressure increases by 8-10 psi above the normal level, it’s time to backwash to remove debris and keep the filtration system working well.

Are there eco-friendly ways to clean a saltwater pool?

Yes, eco-friendly pool cleaning options exist. Enzyme pool cleaners and natural algaeecides can fight algae without harsh chemicals. These products improve your pool’s cleaning processes, making them eco-friendly. Regular maintenance, good circulation, and efficient filtration help make pools more eco-friendly.

How does water circulation prevent algae in saltwater pools?

Water circulation is important for stopping algae growth. Poor circulation promotes algae growth. Adjusted return jets and skimmer baskets help water flow for better pool filtration and sanitation. This prevents algae from growing in the pool.

Can a robot clean algae from my saltwater pool?

Robotic pool cleaners are great at removing algae, especially when used with regular pool cleaning. These cleaners help clean pools by scrubbing and removing algae. They help fight algae infestations.

Can vinegar lower pool pH during cleanup?

Vinegar is not usually recommended for major pH adjustments in pools, although it can be used in small amounts to lower pH levels. Vinegar may not be precise for pH control and can be pricier than pool pH products. Using pool-specific products ensures precise pH control.

What happens if you use too much algaecide in a saltwater pool?

Using too much algaecide in a saltwater pool can cause high levels of cyanuric acid due to over-stabilization. High cyanuric acid levels can weaken chlorine’s ability to sanitize water. Using excessive algaecide can cause foaming in the pool. Follow the recommended dosage for algaecides to keep your pool water safe and clear.

Can I use a saltwater pool during cleanup or should I keep it closed?

When cleaning a green saltwater pool, it’s usually best to keep it closed and limit access. Green pool swimming is unsafe due to poor water quality and potentially harmful microorganisms. Covering and locking the pool keeps people out until the water is clear and safe to swim in. Safety is crucial in pool maintenance.

Final Words

To make a green saltwater pool clean and inviting again, you need a careful and organized plan. To keep your pool water clear and refreshing, address algae growth, maintain balanced water chemistry, and practice good pool hygiene. Be patient and persistent when dealing with a green pool. Ongoing maintenance is important to prevent future algae outbreaks. With these efforts, your saltwater pool will be a relaxing and enjoyable oasis.


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 *