Common Causes of Low Water Pressure and How to Fix Them

Low water pressure is an annoying problem that can disrupt your daily routine. From struggling to get a good shower to slow-filling sinks, low water pressure can be frustrating.

There are many potential causes of low water pressure—some easy to fix, while others may require professional intervention. In this article, we’ll cover the most common causes of low water pressure and how you can resolve them to get back to smooth, consistent water flow in your home.

1. Clogged Pipes

Over time, the inside of your pipes can accumulate mineral deposits, especially if you live in an area with hard water. These deposits can restrict the flow of water, leading to lower pressure in your fixtures.

Solution: If mineral buildup is the issue, professional pipe cleaning or replacement may be necessary. A plumber can inspect your pipes and use techniques like hydro jetting to remove buildup and restore water flow.

2. Leaking Pipes

Leaks in your plumbing system can cause a drop in water pressure. Even a small leak can divert water away from your fixtures, reducing the pressure at your taps. In severe cases, you may notice damp spots on walls, ceilings, or around your yard.

Solution: If you suspect a leak, it’s important to address it quickly. A plumber can locate the source of the leak and perform the necessary repairs, helping to restore full water pressure and prevent further damage to your home.

3. Faulty Pressure Regulator

A pressure regulator is a valve that controls the water pressure coming into your home from the municipal supply. If the regulator malfunctions, it may result in either too much or too little water pressure.

Solution: A faulty pressure regulator often requires replacement. This is a task best left to a professional plumber, as adjusting or replacing this component improperly can cause further issues.

4. Partially Closed Valves

If a valve in your plumbing system is partially closed, it can restrict water flow and lead to lower pressure. This often happens after repairs or maintenance when valves aren’t fully reopened.

Solution: Check the main water shut-off valve and any local shut-off valves near sinks and toilets to ensure they’re fully open. If opening the valves doesn’t solve the issue, the problem may lie elsewhere in your plumbing system.

5. Corroded Pipes

Older homes with galvanized steel or iron pipes are prone to corrosion, which can narrow the pipes and restrict water flow. Over time, corrosion reduces water pressure throughout the house.

Solution: If corrosion is the cause of your low water pressure, pipe replacement may be necessary. A professional plumber can replace old pipes with more durable, corrosion-resistant materials like copper or PEX piping.

6. Problems with the Municipal Water Supply

Sometimes, the cause of low water pressure isn’t within your home’s plumbing system at all. A temporary drop in pressure from the municipal supply, such as during repairs or maintenance, can affect your water pressure.

Solution: Contact your local water provider to check if they’re performing maintenance or repairs in your area. If so, the low pressure should resolve once their work is completed. If not, you may need a plumber to investigate further.

7. Clogged Faucets or Shower Heads

Mineral deposits and debris can accumulate in faucets and showerheads, blocking water flow and reducing pressure.

Solution: You can often resolve this problem by removing and cleaning the aerators on faucets or the showerhead itself. Soaking them in vinegar can dissolve mineral deposits, restoring normal water flow.

8. Peak Water Usage Times

In some neighborhoods, water pressure can dip during peak usage times, such as early mornings or late evenings when many households are using water simultaneously.

Solution: If this is a recurring issue, you may want to install a water pressure booster to maintain consistent pressure even during high-demand periods. Consulting a plumber to discuss booster options is recommended.

How to Prevent Future Low Water Pressure Issues

Regular plumbing maintenance is key to preventing low water pressure and other plumbing problems. Scheduling an annual plumbing inspection can help identify issues like leaks, corrosion, or mineral buildup before they become serious. Additionally, installing a water softener can prevent the accumulation of mineral deposits, especially if you have hard water.

Conclusion

Low water pressure can be caused by a range of issues, from simple clogs to more complex plumbing problems. By identifying the root cause and taking appropriate action, you can restore your water pressure and improve your daily routines. If you’re unsure of the cause or need professional assistance, don’t hesitate to contact us for an inspection and repair.

Before you go...

free inspection

& Second opinion

Logo of aspen one hour heating & air conditioning, indicating service in jackson, mi, and surrounding areas since 1981.

Take advantage of our free inspection and free second opinion offer and receive a complimentary estimate for any new installation service.