How to Drain House Water Pipes and Prevent Freezing Damage

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Posted Nov 22, 2024

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Wrench and Pipes on Sketch
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Draining your house water pipes is a crucial step to prevent freezing damage during the winter months. Water expands as it freezes, which can cause pipes to burst and lead to costly repairs.

To determine if you have exposed pipes, check your basement, crawl space, or unheated areas of your home. If you notice pipes that are not insulated or are located near exterior walls, you may need to take extra precautions.

In areas with extremely cold temperatures, consider draining your pipes every 2-4 weeks. This can help prevent pipes from freezing and bursting.

If you do experience a frozen pipe, turn off the main water shut-off valve and call a plumber to thaw and repair the pipe.

Preparation

Before you start draining your house water pipes, it's essential to turn off the main shut-off valve. This valve is usually located near the water meter or where the water line enters your home.

You'll also need to locate the drain valve on your water heater, which is typically at the bottom.

Drain the water heater by opening the valve and allowing the water to flow into a bucket or drain pan.

Pipes to Prepare for Freezing

Credit: youtube.com, How To Prepare Your Pipes for Winter

As the temperature drops, it's essential to prepare your pipes for freezing. You should identify the shut-off valves in your home, which might be different for various parts of your plumbing system.

In some cases, you'll need to find the main valve, usually located near the water meter. Familiarize yourself with the locations of these valves.

Gate valves require turning a wheel to shut off, while ball valves use a lever for this purpose. Understanding which type of valve your system has is crucial.

Is It Necessary?

It's a good idea to drain your water heater periodically to remove sediment buildup. This will help extend its lifespan and ensure it continues to function properly.

The draining process for the water heater is separate from regular plumbing lines, so you'll need to follow specific instructions to do it correctly.

Location and Setup

To drain house water pipes, you'll need to locate the shut-off valves, which are usually found near the water meter or where the water line enters the house.

Credit: youtube.com, How Your Home Plumbing Works (From Start to Finish) | GOT2LEARN

Typically, these valves are near the ground and can be accessed by digging or removing a small section of the sidewalk. Make sure to turn off the main water supply valve before proceeding.

The shut-off valves are usually labeled as "main shut-off" or "master shut-off", and turning them clockwise will close the valve and shut off the water supply.

Open Faucets and Valves

Opening faucets and valves is a crucial step in draining your plumbing system. It serves two purposes: letting water out and allowing air in, which facilitates more efficient drainage.

You should always prioritize the faucet or valve situated at the highest point of your house. For homes with multiple stories, it's best to start upstairs and then work your way down.

Opening the faucets and valves lets water out, which helps to drain the system. This is especially important because it can prevent a vacuum effect that might inhibit water flow.

In homes with multiple stories, it's recommended to initiate the process upstairs first. This allows gravity to do its job and helps to drain the system more efficiently.

Typical Home Setup

Close up Shot of Cracks on a Frozen Body of Water
Credit: pexels.com, Close up Shot of Cracks on a Frozen Body of Water

An average-sized home's plumbing system can take anywhere from 30 minutes to a couple of hours to fully drain.

Your main line splits into two different pipe paths once inside the house, one traveling throughout the home and the other to the water heater.

These paths are called the hot and cold-water lines, which supply your faucets with water.

For an average-sized home, it might take anywhere from 30 minutes to a couple of hours to fully drain the plumbing system.

Outdoor Showers & Faucets

Outdoor showers and faucets are a great perk, but they need some extra TLC to withstand the elements.

Efficiently draining these fixtures is crucial, especially in colder regions, as it prevents ice formation that can cause significant damage.

Homeowners in colder areas may want to consider insulating their outdoor fixtures post-drainage.

Frost-proof models are also a great option for outdoor showers and faucets, especially in areas prone to freezing temperatures.

Lowest Point

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The lowest point in your plumbing system is a crucial spot to identify. It's the point where water tends to collect and can cause problems if not properly drained.

Residual water at the lowest point can catalyze several issues, including mold growth and corrosion. This can lead to more severe problems like burst pipes.

In some configurations, you might have multiple drain valves, so it's essential to locate them all to ensure the system is completely drained.

System Components and Maintenance

To drain house water pipes, you'll need to turn off the main water shut-off valve, which is usually located near the water meter. This valve controls the entire house's water supply.

The shut-off valve is typically a ball valve or a gate valve, and it's essential to turn it clockwise to shut off the water supply.

It's also crucial to open the lowest drain valve on the house to allow air to enter the pipes and facilitate draining.

System Components

Flexible water pipe with steel braid
Credit: pexels.com, Flexible water pipe with steel braid

A plumbing system's design depends on the geographical area and the type of building it serves. For instance, a single-family dwelling might have a simple water supply system.

In contrast, a high-rise building typically requires a more complex system with multiple water supply sources to various parts of the building. This is often necessary to accommodate the increased water demands of a larger building.

Plumbing systems can vary significantly in complexity, with some having multiple water supply sources. This is especially true for high-rise buildings that require more water pressure to reach upper floors.

A simple water supply system, like the one found in a single-family dwelling, might be sufficient for a small building. However, this is not the case for larger buildings that require more complex plumbing arrangements.

Plumbing systems also involve complex drainage arrangements, which are often necessary in high-rise buildings to ensure proper waste removal.

Winterizing

Winterizing is a crucial process for seasonal vacation homes or cabins to prevent damage from freezing temperatures.

Credit: youtube.com, Stylecraft Home Maintenance DIY | Winterizing Irrigation System

Draining plumbing systems is a critical step in winterizing, as standing water in pipes can freeze and cause them to burst when thawed in the spring. This can result in extensive damage to the home.

You'll need to remove all water from the pipes, fixtures, and appliances to prevent freezing. This includes draining water from hoses, irrigation systems, and any other exterior water sources.

Without proper winterizing, you may end up with costly repairs to your home.

Upgrading

Upgrading your home's plumbing system requires draining all water from the pipes and tanks or reservoirs of fixtures and appliances. This ensures you can make necessary changes without worrying about water damage.

You'll need to drain all the water in the pipes to properly inspect the system for leaks or damage. This step is crucial before using the new plumbing.

Refilling the plumbing system is relatively simple and only requires a few steps.

Lenox Can Help

Top View of a Forest and Shore of a Frozen Body of Water
Credit: pexels.com, Top View of a Forest and Shore of a Frozen Body of Water

Lenox Plumbing is available to assist with your plumbing needs, including hot water services.

They offer a range of services, including drain cleaning and sump pumps.

Their hours of operation are Monday to Friday from 7am to 8pm, Saturday from 9am to 7pm, and Sunday from 9am to 5pm.

You can reach out to them 24/7 for emergency services.

Here are some of the services they provide:

  • Hot Water
  • Drain Cleaning
  • Sump Pumps
  • Plumbing Repairs
  • More Services

Troubleshooting and Repair

Draining your house water pipes can be a daunting task, but it's often necessary for repairs. Draining the system allows you to inspect the pipes for any damage or leaks.

You'll need to drain the entire system or at least the part you'll be working on to make repairs. This is because water can make the repair process more difficult or even impossible.

Any Remaining

Drain any remaining water from the fixtures and appliances. This is crucial to prevent damage and further complications.

You'll need to consult the owner's manual for your specific appliance to determine the best way to drain any remaining water. This will ensure you're doing it safely and effectively.

Fixtures and appliances connected to the plumbing system, such as a washing machine, water heater, or dishwasher, require special attention.

How to Clear Clogged Pipes

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Clearing clogged pipes requires some basic knowledge of how they work. Your house water main is usually a large pipe (¾ inches or larger) made of materials like plastic, galvanized iron, or copper.

If you suspect a clog, check if the supply line is the culprit. This line is buried deep enough underneath your property that it won't freeze.

To clear a clog, you'll need to locate the supply line, which runs from the ground directly into your home. It's usually made of plastic, galvanized iron, or copper, with copper being the ideal choice.

A plumber's snake or a plunger can help dislodge the clog, but if the problem persists, you may need to call a professional.

Leftover Mold or Growth

Leftover Mold or Growth can be a real issue in your plumbing system, especially if you have stagnant water in areas that aren't regularly used. Regular drainage and flushing can prevent such issues.

Credit: youtube.com, How to fix Mould & Condensation problems

Residual water in pipes can potentially contribute to mold or mildew growth. Discolored water can occasionally occur after the system is drained and then refilled, often due to sediment being dislodged during the process.

Running the water for a few minutes should clear out discolored water. If the discoloration persists, it may be worth consulting with a professional.

Hammer Problems

Water hammer problems can be a real nuisance, causing damage to pipes, fixtures, and appliances.

A sudden pressure surge or wave occurs when water in motion is forced to stop or change direction quickly.

Draining the system can help to prevent or fix water hammer problems.

This is because the sudden stopping or change of direction causes a buildup of water pressure that can be damaging.

Making Repairs

Making repairs can be a challenge, especially when water is involved. Draining the system is often necessary to prevent water from getting in the way of the repair.

Draining the system allows you to inspect the pipes for any damage or leaks that may need to be fixed.

Frequently Asked Questions

How do I clear my water pipes at home?

To clear your water pipes at home, flush all hot water taps and fixtures for 15 minutes to remove any debris or sediment. This simple process can help prevent clogs and ensure smooth water flow.

Should you drain pipes after turning off water?

Yes, draining pipes after turning off water is recommended to prevent water from stagnating and causing damage. Open your faucets to drain the pipes, especially if the water will be off for an extended period.

How do you get air out of pipes after water is shut off?

Turn off your main water supply, then open all faucets and flush toilets to release trapped air. Once the water stops flowing, turn the supply back on and close the faucets in reverse order to remove any remaining air pockets

Tom Tate

Lead Writer

Tom Tate is a seasoned writer and editor, with years of experience creating compelling content for online audiences. He has a talent for distilling complex topics into clear and concise language that engages readers on a deep level. In addition to his writing skills, Tom is also an expert in digital marketing and web design.

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