How To Clean Sand Out of a Water Well: Our Professional Guide


Water wells are a reliable source of clean water for many homes, but they can sometimes suffer from the annoyance of sand making its way into your water supply. 

Having sand in your well water at home can lead to clogged pipes, reduced water flow, and damage to your plumbing system. 

In this article, we’ll explore the reasons why sand can find its way into your well water, whether it poses any dangers, and guide you on how to clean sand out of a water well effectively.

Why Does Well Water Contain Sand?

When you rely on a well for your water supply, it’s essential to understand the various factors that can lead to the presence of sand in your well water. Here’s a more detailed explanation on how to clean sand out of a water well:

Your Well Casing or Well Screen Has Degraded

Over time, the materials used in well casings and screens can deteriorate due to exposure to the elements, chemical reactions with groundwater, or simply old age. This degradation can create openings or cracks in the casing or screen, allowing sand and other sediments to enter your well.

Causes of Casing and Screen Degradation:

Corrosion: Well casings and screens are typically made of materials like steel or PVC. Corrosion can occur when the casing or screen reacts with the minerals and chemicals present in the groundwater. This corrosion weakens the structure, making it more susceptible to damage.

Physical Wear and Tear: Over many years, the casing and screen may become worn, especially if they are subject to heavy loads, pressure changes, or other environmental stresses. These physical stresses can cause cracks or openings to form.

Ground Settlement: Changes in the surrounding soil, such as settling or shifting, can put pressure on the well casing or screen, leading to damage over time.

Improper Well Pump Placement

The position of your well pump within the well bore is critical to the quality of your water supply. 

If the well pump is located too close to the bottom of the well, it can disturb and stir up the sand and sediment present, causing them to be drawn into your water supply. 

This situation often occurs when the well pump is not correctly set or the well depth is not accurately measured.

Effects of Improper Well Pump Placement:

Sand Mobilization: When the well pump is too low in the well, it can create turbulence and agitation in the water at the bottom. This disturbance can lead to fine sand particles being suspended in the water and subsequently pumped into your plumbing system.

Reduced Water Quality: The presence of sand in your well water can lead to poor water quality. It may result in water that appears cloudy or contains visible particles, making it less appealing for consumption and household use.

To avoid these issues, it’s crucial to consult with a professional well installer or contractor when installing or servicing your well pump

They can ensure that the well pump is positioned at an appropriate depth to minimize the risk of sand infiltration and maintain water quality. 

Regular well maintenance and inspections can also help identify and address any issues with your well casing or screen to draw sand from entering your water supply.

Oversized Well Pump

Using a well pump that is larger in capacity than what your well can sustain can be a significant contributing factor to sand entering your well water. Here’s a more detailed explanation:

Effects of an Oversized Well Pump:

Excessive Drawdown: An oversized well pump can draw water from the well at a faster rate than the well’s natural recharge rate. When this happens, it can create a vacuum effect that can dislodge sand and sediments from the well’s walls and bottom.

Turbulence: A pump that’s too powerful can cause turbulence in the well, agitating the water and resuspending clean sand particles that had settled at the bottom. This turbulence can result in pumping sand into your supply of water.

To address this issue, it’s crucial to ensure that your well pump is correctly sized to match the well’s capacity and the household’s water demand. A professional well installer can assess your well’s characteristics and recommend the appropriate size to pump sand and to prevent sand infiltration.

Poor Well Treatment

Maintaining the health of your well is essential to prevent sand from contaminating your water supply. Poor well treatment practices can contribute to sand issues:

Causes of Poor Well Treatment:

Lack of Maintenance: Neglecting regular well maintenance, including cleaning and inspection, can allow conditions within the well to deteriorate. 

Over time, this can lead to issues like bacterial growth, mineral buildup, and corrosion, which can contribute to sand entering the water.

Inadequate Filtration: If your well lacks effective filtration systems or if existing filters are not properly maintained, it can allow sand and sediment to pass through into your plumbing.

Water Chemistry Imbalance: The chemistry of the groundwater can change over time. If the pH, hardness, or other chemical factors are not properly managed, it can lead to conditions that encourage sand mobilization or sediment accumulation.

To prevent poor well treatment from causing sand issues, schedule regular maintenance and water testing with a professional well service provider. 

They can help ensure that your well is in optimal condition, including treating any water chemistry imbalances and installing or maintaining appropriate filtration systems to reduce sand infiltration.

In conclusion, understanding the various reasons behind sand entering your well water is crucial for maintaining a clean and reliable water supply. 

By addressing issues like an oversized well pump and poor well treatment practices, you can take proactive steps to pump sand out of your well water and enjoy high-quality water in your home. 


Is Sand in Well Water Dangerous?

Understanding the potential risks associated well water if sand is found is essential for making informed decisions about remediation.

While sand itself is not typically harmful to human health, it can have various negative consequences:

Plumbing Damage: The abrasive nature of sand can accelerate wear and tear on your plumbing systems, including water pipes, faucets, and water appliances. This can lead to increased maintenance costs and reduced equipment lifespan.

Reduced Water Quality: Sand can cause water to appear cloudy and may contain visible particles, making it less appealing for consumption and household water usage. It can also affect the taste and odor of the water.

Filtration System Impairment: Sand can clog and reduce the efficiency of water filtration systems, such as sediment filters or reverse osmosis systems. This can lead to decreased water quality and the need for more frequent filter sand replacements.

While sand in well water is generally not considered a direct health hazard, it can lead to other issues that affect your daily life and the functionality of your plumbing and water treatment systems. 

Therefore, addressing sand infiltration is essential for maintaining the quality and longevity of your water supply.

What to Do If You Discover Sand In Well Water

If you detect sand in your well water, it’s important to take prompt action to mitigate the issue and ensure clean, reliable water. Here’s a more detailed explanation of what you should do:

Stop Using Contaminated Water: First and foremost, discontinue the use of water from your well until the sand problem is resolved. This will prevent further damage to your plumbing and appliances.

Consult a Well Contractor: Reach out to a qualified well contractor who specializes in well water systems. They can perform a thorough assessment of your well to identify the source of the sand and recommend appropriate solutions.

New Casing

If the well contractor determines that the sand infiltration is primarily due to a degraded casing (well) or well screen, they may recommend installing a new casing or screen. 

Here’s a more detailed explanation:

Assessment: The contractor will assess the condition of your existing casing or screen. If it is corroded, damaged, or compromised in any way, replacement may be necessary.

Installation: Installing a new casing or screen typically involves lowering it into the well bore and securing it in place. The new casing or screen should be made of materials that resist corrosion and are designed to prevent sand intrusion.

Sealing: Proper sealing of the well casing or screen is essential to prevent contaminants from entering the well from the surrounding soil. This ensures that your water supply remains clean and free of sand.

By addressing the root cause of the sand infiltration, which may involve installing a new casing or screen, you can restore your well water to a clean and reliable state. A well contractor will guide you through this process to ensure the best possible outcome. 

How to Remove Sand in Well Water

Addressing sand in well water is essential to maintain water quality and prevent damage to your plumbing and appliances. Here are effective methods for removing sand from your well water:

Spin-Down Filter Screens

Spin-down filter screens, also known as sediment filters, are a common and effective way to remove sand and sediment from well water. Here’s a more detailed explanation:

Installation: These screens are typically installed between the well pump and your home’s plumbing systems. Water from the well passes through the filter before entering your household pipes.

Mechanism: A spin-down filter use a fine mesh screen to trap sand and other particles as water flow through. The screen can be periodically cleaned to remove the accumulated sand. Some models have automated cleaning systems.

Maintenance: Regular maintenance involves shutting off the water supply, opening the filter, and rinsing or brushing off the trapped sand. This should be done as needed, depending on the level of sand in your well water.

Centrifugal Sand Separators

Centrifugal sand separators are another effective method for removing sand and sediments from well water. Here’s a more detailed explanation:

Installation: These separators are typically installed at the wellhead, where water enters your home’s plumbing system. They use centrifugal force to separate sand and sediments from the water.

Mechanism: As water enters the separator, it is spun around at high speed. The centrifugal force causes heavier particles like sand to settle at the bottom of the separator, where they can be periodically flushed out.

Maintenance: Regular maintenance includes checking the separator’s operation and ensuring it is functioning efficiently. Periodic flushing or cleaning of the separator may be necessary to remove accumulated sand.


Dealing with sand in your well water can be a nuisance, but it’s a solvable problem. 

By understanding the causes of sand infiltration, such as degraded well casings, placement of well pump that’s improper, an oversized well pump, or poor well treatment, you can take proactive steps to address the issue oh ‘how to clean sand out of a water well’.

Whether you choose to install spin-down filter screens, centrifugal sand separators, or other filtration methods, it’s essential to consult with a professional well contractor. 

They can assess your specific situation, recommend the most suitable solution, and ensure proper installation and maintenance.This will help you in your journey to draw sand out of a water well. 

By addressing the root causes of sand infiltration and implementing effective filtration solutions, you can enjoy clean, sand-free well water and extend the life of your plumbing system and water appliances.


To wrap up our discussion on sand in well water, here are some frequently asked questions:

Can sand in well water damage my appliances?

Yes, sand can accelerate the wear and tear on your plumbing fixtures and water appliances, reducing their lifespan and efficiency.

How often should I clean my spin-down filter screen or centrifugal sand separator?

The frequency of cleaning depends on the level of sand in your well water and the specific system you have in place. Regular monitoring and cleaning as needed are essential to maintain their effectiveness.

Can I remove sand from well water without professional help?

While some homeowners may be able to install spin-down filter screens themselves, it’s generally advisable to consult with a professional well contractor to ensure the most effective and long-lasting solution. They can also address more complex issues like degraded well casings or screens. 

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