Cloudy Pool Water Causes and Remedies

No matter how diligently you clean your pool, the time will come when you’ll have to deal with cloudy pool water. While this issue must be dealt with promptly to prevent a variety of health hazards, turning your water clear again doesn’t have to be complicated. Let’s explore the most common reasons why the water in your pool looks hazy and uninviting, and how our trusted water hauling service can help you fix the problem.

5 Reasons Your Pool Water Is Cloudy

1. Poor Water Chemistry 

The most common cause of cloudy water in your pool is a chemical imbalance, ranging from low chlorine levels to a too-high pH. Chlorine is the most important chemical in your pool, eliminating bacteria and algae that can cloud the water. Its level must be kept between 1.0 and 4.0 ppm, or the pool can become a prime spot for bacteria and algae growth, which can turn the water cloudy.

 

A high pH doesn’t turn the water cloudy on its own, but levels above 7.8 render chlorine ineffective allowing contaminants to thrive. The total alkalinity in the pool also plays a role, as an alkalinity level below 80 ppm makes the water vulnerable to pH fluctuations, with consequences on the chlorine’s effectiveness and water clearness. Excessive levels of stabilizer, which is a chemical protecting chlorine from sunlight, can also turn the water cloudy.

2. Poor Filtration

Proper water circulation and filtration are essential for preventing the accumulation of debris and contaminants that can cause cloudiness. One of the most common reasons for pool filtration is insufficient filtration time. Depending on the pool size, the pool’s circulation and filtration systems should remain active for at least eight hours a day. Filtering the entire pool volume several times a day can help prevent cloudy water.

 

Beyond insufficient filtration time, a clogged filter or skimmer basket can prevent the debris from being removed. Organic matter that remains in the water, such as fallen leaves, can begin to rot and be responsible for cloudiness, especially if the water also suffers from a chemical imbalance. Similarly, dirty or damaged filter media can trap dirt and debris and cause water cloudiness.

3. Algae Growth

When chemistry imbalances or filtration issues are not addressed promptly, the water in your pool can become a prime spot for algae growth. Green algae are the most common type and can appear as a slimy film on the pool walls and cloudy water with a greenish tinge. This algae type is often caused by inconsistent or low chlorine levels.

 

Poor chlorination or high levels of phosphate can also cause black algae growth. While this algae type isn’t harmful, it can turn the water cloudy. Yellow or mustard algae are often caused by improper filtration and can turn the water cloudy or hazy. This algae type is chlorine-resistant, meaning that simply restoring the chemical balance and solving the filtration issue won’t help you get rid of yellow or mustard algae once it has started to grow in your pool.

4. Improper Pool Use

When using the pool, it is essential to prevent sunscreen, body oils, and lotions from contaminating the water. All these products will wash off the skin, forming an oily residue on the water surface and building up on the pool pipes, walls, and filters. The interaction of the oil residue with the chemicals in the pool can cause imbalances, which can lead to water cloudiness.

 

The residues building up on the filtration system can also clog the filters or damage the filtration media, leading to improper filtration even when you run the system for the recommended amount of time. Showering before using the pool is the easiest way to prevent these products from contaminating the water. If you want to use sunscreen in the pool, shocking the water regularly and using a water clarifier is generally enough to remove the oily residue.

5. Environmental Factors

Mother Nature can affect the water in your pool in a number of ways. For instance, heavy rains can dilute the pool chemicals and introduce a variety of contaminants, such as dirt, leaves, and other debris. Dust storms can also carry dust, pollen, and other airborne contaminants into the pool, which could clog the filtration system and lead to cloudiness.

How to Fix Cloudy Pool Water

Adjust the Chemical Imbalances

Maintaining a proper chemical balance in your pool is key to preventing water cloudiness. You can use a pool test kit to check the levels of chlorine, pH, alkalinity, and cyanuric acid (stabilizer). Chlorine tablets or a shock treatment can help restore the chlorine levels, while pH down and pH up products can help maintain the pH level within the desired range of 7.2 to 7.8.

 

Unlike chlorine and pH, cyanuric acid in the pool is never used up and accumulates in the water as a waste product. If its levels are too high, the only solution is to drain some of the water in your pool and add fresh water. No matter how much or how little water you need, we can top off your pool with high-quality water so you won’t have to worry about introducing other contaminants.

Eliminate Algae Growth

As explained, algae can turn the water cloudy regardless of their type. Shocking the pool might help get rid of green and black algae, but unless you eliminate all traces, the problem will keep coming back. Yellow or mustard algae is resistant to chlorine, so you must use a proper algaecide, such as sodium bromide, to eradicate this type of algae.

 

Distinguishing between various algae types is not always easy, and in this case, having the water tested might help identify the right treatment. If nothing works and the algae problem keeps coming back, you might have to drain the pool, clean it thoroughly, and fill it again with fresh and chemically balanced water.

Consider a Clarifier

For persistent cloudiness, a clarifier might help clump together the particles making the water hazy, speeding up the clearing process. However, clarifiers won’t work unless you treat the cause, such as the algae growth or chemical imbalance.

Use Chemically Balanced Water

Whether you’re filling the pool for the season or need to add fresh water for one reason or another, you should only use chemically balanced water. Filling the pool with well or plain tap water, for instance, could add a variety of contaminants, including algae and bacteria, that can be difficult to remove afterward.

 

Hiring a bulk water company has many advantages. Our high-quality water is free of contaminants and elements that could stain your pool liner, such as iron, and is easy to adjust to achieve the desired chemical balance. Our water delivery service can save you time and money, ensuring your pool water is crystal clear and safe to bathe in.

Do you need fresh water to fill up or top off the water in your pool? Contact us at Taylor Farms LLC in Inwood, WV to find out more about our water hauling service, ask for a quote, and schedule a delivery. We serve various areas in West Virginia, including Berkeley County, Jefferson County, Morgan County, and Hampshire County. We also deliver water to adjacent states, including Virginia, Pennsylvania, and Maryland.