Top 7 Reasons for Low Water Pressure in Your Home

Enjoy Excellent Water Pressure Year-Round

Ever turned on your faucet expecting a steady stream, only to be met with a disappointing trickle? Many homeowners experience this frustrating problem. Low water pressure can stem from various issues, from simple clogs to more complex problems with your water systems.

Understanding the cause is the first step to finding a solution. Join us to learn the most common reasons for low water pressure.

Common Reasons for Low Water Pressure

Residential water pressure typically falls between 45 and 80 psi, with an ideal range of 45 to 55 psi. If your home’s water pressure is below 45 psi, you likely have low water pressure. Several factors can affect water pressure. Here are some of the most common culprits.

1. Clogged Pipes

Over time, mineral deposits, sediment, and debris accumulate in pipes causing low water pressure. This buildup restricts water flow, reducing pressure. This is especially common in older homes with galvanized steel pipes, which are prone to corrosion. The typical life span of these pipes is 20 to 50 years.

2. Faulty Pressure Regulator

A pressure regulator controls the water pressure entering your home. It’s typically set between 45 and 60 psi. A malfunctioning pressure regulator can cause inconsistent or low water pressure.

This can affect all of the plumbing fixtures in your home. This might be a pressure problem for your whole home, and be something that’s not caused by washing dishes or simple leaks.

3. Partially Closed Valves

Your home has two main shut-off valves: one at the meter and one where the main line enters your house. A partially closed main shut-off valve, or a partially closed meter valve, will restrict water flow. This reduced water pressure will affect the water flow rate throughout your home.

4. Leaking Pipes

Even small leaks can significantly impact water pressure and cause bigger problems over time.

Hidden leaks behind walls or under floors can be especially problematic. If you notice reduced water pressure in one area, like the kitchen sink, a localized leak could be the cause.

5. Municipal Supply Issues

Sometimes, low water pressure originates outside your home. Municipal water supply problems, like maintenance or high demand during peak hours, can cause pressure issues throughout the neighborhood.

This reduced water pressure can lead to water pressure issues throughout your home until it returns to a normal flow rate.

6. Shared Pipelines

In some areas, homes share a water line. This shared pipeline system may experience supply issues when there is high demand. Increased demand from your water supplier often comes with water damage to the area of a leak over time.

Your neighbors’ water usage can impact your water pressure, especially during peak periods. A partially closed main valve in a neighbor’s property can also affect multiple neighbors with supply issues.

7. Outdated Plumbing Fixtures

Old or faulty plumbing fixtures can restrict water flow, including problems with washing dishes. Mineral buildup further exacerbates the issue, causing low water pressure.

A corroded pipe or a closed water valve can create issues as well. Consider your pipes, valves, and fixtures to determine if these problems are the cause of the low pressure.

How to Diagnose Low Water Pressure

Diagnosing the cause is key to resolving low water pressure. Follow these steps to pinpoint the issue. Be mindful of a faulty pressure regulator, since pressure typically gets affected by this important valve. Water leaks, water main breaks, or other issues at your neighbor’s house may impact your home as well.

1. Check Multiple Fixtures: Test faucets and appliances throughout your home. Isolated low pressure suggests a localized problem rather than a whole-house issue.
2. Inspect Visible Pipes: Examine exposed pipes for leaks, corrosion, or damage.
3. Check Shut-Off Valves: Verify that the main shut-off valve and the water meter valve are fully open.
4. Test with a Pressure Gauge: Use a pressure gauge on an outside hose spigot (with the hose removed) for an accurate pressure reading.
5. Consult Neighbors: Ask if they’re experiencing similar problems, which might indicate a municipal supply issue.

Solutions for Low Water Pressure

Once you’ve identified the cause, implement the appropriate solution. Remember that there may be bigger problems causing the reduced water flow, so don’t give up on investigating. Many different reasons may be the issue.

Cleaning or Replacing Pipes

If clogged pipes are the problem, cleaning or replacement might be necessary. You can try flushing your system for minor blockages. Sometimes there can be air in the pipes which may create a similar situation as a blockage from minerals.

Adjusting the Pressure Regulator

Adjusting the pressure regulator may resolve the issue if your home has one. However, excessive pressure can be dangerous. Aim for 60-70 PSI. It’s also possible the water pressure is too low if a regulator isn’t installed, so check to see if a regulator is installed on your water lines.

Fixing Leaks

Promptly repair leaks to conserve water and restore pressure. Minor leaks might be DIY projects. Larger leaks often require professional plumbers.

Upgrading Plumbing Fixtures

Replacing outdated fixtures, such as low-flow shower heads and corroded faucets, can improve water flow. If you notice reduced pressure only in the shower, there’s a good chance your shower head is to blame. If the shower head and washing dishes are experiencing reduced water pressure, a water meter valve being partially closed might be the culprit.

Installing a Water Pressure Booster

If municipal water pressure is consistently low, a water pressure booster pump can increase pressure as water enters your home. This can dramatically increase water pressure throughout the entire house.

When to Call a Professional

While some low-water pressure problems are simple fixes, others demand professional help. A licensed plumber can handle problems that range from high water pressure to a leaking pipe or faucet.

• Troubleshooting attempts are unsuccessful.
• You suspect major leaks or pipe damage.
• The entire house has low water pressure.
• You need to adjust or replace a pressure regulator.
• You’re considering a pressure booster system.

Complex plumbing repairs without proper training can worsen the issue and incur higher costs later.

Preventing Future Water Pressure Issues

Maintaining consistent water pressure requires proactive measures.

• Regular plumbing inspections can identify potential issues early on.
• A water softener reduces mineral buildup, which prevents clogged water lines.
• Clean faucet aerators and showerheads regularly to maintain optimal flow.
• Be mindful of water usage during peak times to avoid straining the system.
• Upgrade old plumbing systems, especially in homes over 50 years old, to improve flow rate and reduce future pressure problems caused by corrosion.

Keeping up with routine maintenance like flushing your system for closed water from blockages can also be helpful. The right water treatment can often resolve hard water-related issues, although some issues are often tied to a malfunctioning pump or a clogged water main.

Conclusion

Low water pressure is a common household frustration with various causes, from clogged pipes and faulty regulators to municipal supply issues. By identifying the source and taking appropriate action, you can restore water pressure to optimal levels.

Whether it involves a simple DIY fix or professional assistance, addressing the underlying cause is essential. Regular plumbing system maintenance is key to preventing future pressure issues and ensuring a consistently strong water flow.