Low water pressure can disrupt your daily routine, make showers less enjoyable, and affect the performance of appliances like dishwashers and washing machines. Whether the problem affects just one faucet or your entire home, identifying the root cause is the first step toward getting your water flow back to normal. Here are the most common causes of low water pressure and how to address them.
1. Clogged Pipes
Over time, minerals, sediment, and debris can build up inside your plumbing, narrowing the interior of the pipes and restricting water flow. This is especially common in older homes with galvanized steel pipes. The result? Low water pressure at one or multiple fixtures.
Signs to look for:
- Uneven pressure throughout your home
- Gradual decline in pressure
- Discolored water or rust flakes
What to do:
Flushing or replacing affected pipes may be necessary. This job is best left to professional plumbers, who can assess whether the issue is isolated or widespread and recommend the most efficient solution.
2. Partially Closed Shut-Off Valves
Your home has several shut-off valves that control the flow of water, including the main shut-off valve and individual fixture valves. If these valves aren’t fully open, they can restrict water flow and cause a noticeable drop in pressure.
Why is my water pressure low only in certain areas?
This could be due to partially closed valves near a specific sink or appliance.
What to do:
Check the main water shut-off valve, typically located near your water meter or where the main line enters your home. Ensure it is completely open. Also inspect valve handles under sinks and behind toilets to confirm they’re in the correct position.
3. Faulty Pressure Regulator
Some homes are equipped with a pressure regulator that controls the water pressure coming from the main line into your plumbing system. If the regulator fails, it may cause either a sudden drop or spike in pressure throughout your home.
Common symptoms:
- Low water pressure in all areas of the home
- Inconsistent pressure (strong at times, weak at others)
What to do:
Replacing a pressure regulator requires plumbing expertise. A technician from Pioneer Comfort Systems can test the unit and install a new one if needed.
4. Leaks in the Plumbing System
Even a small leak can reduce water pressure, especially if it’s located in a main supply line. Leaks can divert water away from where it’s needed, resulting in weaker flow at your faucets and fixtures.
Clues you might have a leak:
- Damp spots on walls or floors
- Higher-than-usual water bills
- The sound of running water when nothing is in use
What to do:
If you suspect a leak, shut off your main water valve and call a plumber immediately. Professional leak detection services can locate hidden leaks and prevent further damage.
5. Municipal Water Supply Issues
Sometimes the problem isn’t with your home’s plumbing at all—it’s with your local water supplier. Maintenance work, broken main lines, or high demand in your area can temporarily reduce water pressure.
What to do:
Ask your neighbors if they’re experiencing the same issue. If they are, contact your water utility provider to check for service updates. Pressure will typically return to normal once the issue is resolved.
6. Corroded or Outdated Fixtures
Old faucets and shower heads can accumulate internal buildup or corrosion that blocks water flow. In these cases, even with normal household pressure, the fixture itself becomes the bottleneck.
What to do:
Try removing the aerator from a slow faucet and cleaning out any debris. If that doesn’t work, consider replacing the fixture entirely for better performance and efficiency.
Let Pioneer Comfort Systems Restore Your Water Pressure
When your water pressure drops, it’s important to act quickly. Ignoring the issue can lead to further plumbing problems, water damage, and unnecessary frustration. At Pioneer Comfort Systems, we’re here to help you understand why your water pressure is low and provide fast, effective solutions to restore normal flow throughout your home.
Call Pioneer Comfort Systems today at 318-795-8000 to schedule your plumbing inspection and get your water pressure back where it should be!