Is your water pressure suddenly weak? Or has it gradually decreased over time? Water pressure problems can make simple tasks like showering or washing dishes frustrating and time-consuming. Before you call a plumber, let’s identify what’s causing your low water pressure and what you can do about it.
Quick Diagnosis: What’s Causing the Water Pressure Decrease in Your House
First, determine if low pressure affects your whole house or just specific fixtures. Here’s how:
Check multiple faucets throughout your home. If only one fixture has low pressure, the problem likely lies with that fixture. If all fixtures have low pressure, you’re facing a whole-house issue.
Next, test both hot and cold water. If only hot water pressure is low, your water heater might be the culprit. If both hot and cold water have low pressure, the problem likely stems from your main water line or internal plumbing.
Common Causes of Low Water Pressure in Houses
Sudden Pressure Drop?
When water pressure decreases suddenly, check these common causes.
Main Water Valve
Your main water valve might be partially closed after recent plumbing work. Look for the valve near your water meter and ensure it’s fully open.
Pressure Reducing Valve
Your pressure-reducing valve may have failed. This device regulates water pressure coming into your home, and when it fails, you’ll notice an immediate change in pressure.
Major Leak
A major leak could be diverting water before it reaches your fixtures. Check for water stains, damp spots, or unusually high water bills.
Gradual Pressure Decrease?
If your water pressure has slowly worsened over time, consider these issues.
Pipe Corrosion
Pipe corrosion gradually restricts water flow. Older homes often face this problem as pipes age and develop internal buildup.
Mineral Deposits
Mineral deposits accumulate in pipes and fixtures, especially in areas with hard water. This buildup slowly reduces water flow over time.
Clogged Aerators
Clogged aerators on faucets restrict flow. While this is easily fixed, multiple clogged fixtures can seem like a whole-house pressure problem.
Water Heater-Related Problems
Your water heater can cause pressure problems in several ways:
- A partially closed water heater valve restricts hot water flow throughout your home.
- Sediment buildup in the tank reduces both water flow and heater efficiency.
- Failed pressure regulators can create dangerous pressure fluctuations requiring immediate attention.
Solutions for Water Pressure Problems
DIY Fixes You Can Try
Some pressure problems have simple solutions:
- Clean faucet aerators by unscrewing them and removing mineral buildup.
- Check and fully open your main water valve.
- Look for obvious leaks around fixtures, under sinks, and in basements.
When to Call a Professional
Contact a plumber immediately if you experience:
- Sudden pressure loss throughout your home
- Signs of hidden leaks like water stains or high bills
- Pressure problems accompanied by discolored water
- Failed pressure-reducing valves
- Water heater pressure issues
Prevent Future Water Pressure Problems
Regular plumbing maintenance helps prevent pressure issues. Schedule annual inspections to catch problems early, especially if your home is over 20 years old. A professional plumber can identify potential issues before they affect your water pressure.
At Arnold & Sons Plumbing, we’ve been solving water pressure problems since 1988. Our experienced plumbers can quickly diagnose the cause of your low water pressure and provide effective, long-lasting solutions. Contact us today to restore proper water pressure to your home.
