White Stuff Floating in Pool

Having a pool on your property is not only prestige but also a quiet escape from the scorching sun heat & a great way to relax & enjoy the summer months. However, if you have a pool in your backyard, there will be times when you will notice white stuff floating in the Pool, which can be both unsightly & concerning. 

Therefore, in this article, you will explore various causes of white stuff floating in pools as well as effective prevention & treatment methods. I will also provide some essential tips to help you maintain a clean & crystal-clear pool. 

However, you should know that white is stuff floating in your Pool that can be anything. Therefore, let’s first discuss what is white substance floating in the Pool, and then, we will talk about the causes as well as treatment for this.

What is White Stuff Floating in Pool

What is White Stuff Floating in Pool

When it comes to knowing what the white stuff is floating in your Pool, there can be several common culprits that you should be aware of. 

  • First, high levels of calcium deposits in the water can suddenly lead to white stuff deposits on pool surfaces. This kind of deposit often appears as scaling or crusty formations. 
  • On the other hand, algae are also known to manifest in different forms, including white & white color. While green is the most well-known & common, there are also a few varieties that may appear white or greyish in color. 
  • Swimmers introduce oil, lotions & cosmetics that accumulate & form a white filmy layer accompanied with Yellow Staining in Pools surface over time. 

Therefore, it is important that you first identify the specific type of white substance in your Pool to determine the appropriate course of action. If you are finding it hard to determine what exactly the white stuff is, consider consulting a professional who will help you assess the situation and give you prompt advice tailored to your pool needs.

3+ Causes of White Stuff Floating in Pools

3+ Causes of White Stuff Floating in Pools

High Calcium Hardness Levels

According to Nao Medical Urgent Care, excessive calcium hardness levels may also lead to the formation of white deposits in your Pool. Also, several factors may contribute to elevated calcium levels, including high mineral content in the source water. 

If you have used calcium-based sanitizer or excessive stock treatment, it will also form white deposits in your Pool. Sometimes, evaporation also concentrates the calcium in the remaining water leading to a formation of white stuff.

Insufficient Pool Maintenance & Cleaning

Maybe you are not paying attention to the regular pool maintenance routine & it is the culprit for the accumulation of white substances in your Pool. You should know that inadequate filtration systems & a lack of proper filter cleaning can all contribute to this issue. If your Pool Sand Filter Not Filtering Algae, check this post.

Maybe, you just need to replace the sand, and if this is the case, check Cost to Replace Sand in Pool Filter. Also, imbalanced water chemistry also sometime leads to accumulated chalky substances on pool surfaces, accompanied with weird odor. If you’re wondering “Why Does My Pool Smell Like Fish“, this can be the culprit.

Algae Growth & Propagation

As I told you in the above section, algae also appear in varieties of color & form like Brown Algae in Pool. Plus, algae can thrive in the presence of sunlight, warm temperatures, and nutrients. Thus if you are not paying attention to appropriate chlorine level maintenance, it will further lead to the formation of algae. 

Also, a balanced pH level creates an environment conducive to algae growth. If you notice white or grey varieties of algae, you might have to take action promptly to keep your water crystal clear.

Human Factors

Another major contributor to white substances in the Pool could be human factors. You should know that swimmers introduce contaminants into the Pool through body oil, sweat, and cosmetics. 

This is why people always recommend first showers before entering the Pool to prevent any formation of white substances. Therefore, never mind educating your people about the importance of personal cleanliness & showering beforehand to prevent these issues.

Prevention & Treatment

Regular Pool Maintenance Practices

If you want to minimize & prevent the occurrence of white stuff in your Pool, I will recommend you establish a proper routine maintenance schedule. I use the like to test the pool water regularly for chlorine level & other chemical parameters. 

It would help if you also did that & maintain the recommended balance according to your pool type & water volume to prevent issues like scale formation & algae growth. Also, it would help if you regularly brushed & scrub your pool walls, steps, & other surfaces to remove debris buildup. 

Many people need to pay attention to areas that are hard to reach. You should know that those areas tend to be breeding grounds for algae. Therefore, make sure you are also paying attention to this area with visible white substances.

Addressing High Calcium Levels

If you think the white stuff in your Pool is due to high calcium hardness, reduce it. To reduce it, you might have to partially drain & refill your Pool with fresh water, which will further reduce the calcium level. 

However, I will also advise you to consult a professional or a Pool Store for guidance on the appropriate amount of water to replace depending on your pool type & the amount of water it has. 

Also, consider introducing water softeners or calcium inhibitors. These kinds of products are very helpful in preventing the formation of calcium deposits if you follow the manufacturer’s recommendation for proper use & dosage. According to National Institutes of Health, almost all modern scale formation inhibitors are able to prevent scale formation

Algae Prevention & Control

If you think the white stop in the Pool is due to the algae growth, you might not be paying attention to proper pool sanitation. You must monitor & maintain appropriate chlorine levels and use gates as required. 

Also, ensure you regularly shock the Pool to kill any existing algae spores. I usually still like to use specific algaecides formulated to target white or grey algae. But, Too Much Algaecide in Pool can be harmful for swimmers. So, make sure to ask the pool supplies store owner or follow the instructions provided by the manufacturer for effective treatment depending on your pool types. Recently, we’ve covered an interesting topic that might intricate you “Will Bleach Kill Algae in a Pool

Swimmer Hygiene & Etiquette

Lastly, you must educate your friends & family about proper hygiene practices, which might significantly reduce the occurrence of white substances & any other problems associated with them in your Pool. 

It would help if you encouraged your people & swimmers to shower. You can consider placing clear signage & reminders for them to shower before entering the Pool to help remove oil solution, cosmetics, & dead skin cells that may contribute to the formation of white chalky substances in the Pool. 

It is also important that you establish & reinforce rules like no pool or drink in the pool area. Also, make the people wear proper swimwear attire to help minimize the introduction of contaminants into the water. To help you better, I’m mentioning some tips to maintain clean & clear pool water.

Maintaining a Clean & Clear Pool

Regular Pool Maintenance Schedule

First of all, you have to establish & create a consistent maintenance routine for keeping your Pool clean & clear. You should always skim the pool surface for debris & empty skimmer baskets from time to time. 

Also, pay attention to inspecting the water circulation. All this must be included in your daily task. Talking about the weekly task, you will have to vacuum your Pool, brush its wall to prevent Tiny Bubbles on Pool Wall, and clean the filter for optimal performance in clearing the water effectively for a safe & enjoyable swimming experience. 

Also, make sure that you are testing & balancing the water week. Every month, you should also inspect & clean the pool equipment while checking for any signs of wear or damage. If required, you must replace the damaged parts or equipment to promote a healthy oasis for swimming.

Water Chemistry Management

Maintaining proper water chemistry by monitoring its balance through regular tests is also important. Make sure to regularly test the water & adjust its PH & chlorine level to the recommended range once a week or monthly, depending on your pool size. 

This will not only prevent scale formation but also algae growth. Also, consider using a pool test kit or digital test to monitor the chemical level to get accurate readings. With accurate readings, you can adjust as necessary to maintain a balanced & safe swimming environment. You can find reliable testing kits nearby your pool supplies Store or online, but choose a reliable one from a well-known brand.

Filtration & Circulation Systems

Another thing you need to consider as a part of pool maintenance is cleaning & maintaining the filtration system. You must choose the right filter & pump specifically tailored to your pool requirement. 

Efficient filtration & circulation systems play a very important role in keeping your Pool clean & crystal clear. It is always right to consult a professional to ensure you have the appropriate filter & pump size for your Pool. 

Also, make sure that you are cleaning & backwashing the filter regularly to maintain its effectiveness & longevity. But, Can You Backwash a Pool Too Much?, Well, the answer is yes. So, always follow the manufacturer’s recommendation for maintaining or cleaning your filter & pump. I also like to remove the debris from skimmer, baskets, & pumps regularly. Every week, you should also do this.

Professional Pool Services

It would help if you also considered hiring a professional pool service once a year at least who can provide expertise as well as convenience. Expect maintenance & inspection important for Pool’s longevity at least once a year. 

Professionals will help you conduct a regular inspection, detect any potential issue early & provide you with appropriate solutions especially tailored to your pool type. Depending on your Pool uses & specific needs, you must schedule a professional cleaning at least once or twice a season which will further ensure optimal cleanliness & water pump quality.


Now I hope you have all that information about the white stuff in the Pool & what to do about it. You must maintain a clean & clear pool by paying attention to the regular maintenance of it. 

I have given my best to give you a proper understanding of the causes of white stuff in your Pool and the importance of implementing prevention & treatment methods. If you regularly maintain, you can enjoy crystal-clear water all season. 

Always remember that consistency, proper water chemistry, & good swimmer hygiene are key to keeping your Pool free from white substances and ensuring a refreshing & inviting oasis is in your backyard. 

If you find this article helpful, where we have shared & in-depth knowledge on what to do about white stuff floating in the Pool, consider sharing it. Your share will help many people learn about the potential causes of white stuff floating in the Pool, along with the appropriate solution they need to consider & implement. 

Check my other helpful guide on pool gear & maintenance to maintain crystal-clear water all season. See you in the next post, till then, take care & goodbye.