What to Do If You Have Low Water Pressure: Common Solutions
Few things are as frustrating as turning on the faucet or shower, only to be met with a weak trickle of water. Low water pressure can make everyday tasks—like washing dishes, doing laundry, or taking a shower—feel like a battle. If you’re constantly dealing with slow-flowing water, it’s not just an inconvenience; it could be a sign of a more significant plumbing issue.

At Silco Plumbing, we understand how important steady water pressure is to your home’s comfort and functionality. If you’re tired of weak water flow and looking for real solutions, we’re here to help. Let’s explore the most common causes of low water pressure and what you can do to fix it.
Understanding Low Water Pressure: What’s Happening?
Water pressure is the force that moves water through your pipes and out of your faucets. When pressure is too low, water struggles to reach certain fixtures at full strength. This can happen in a single sink or throughout the entire house.
Common signs of low water pressure include:
- Weak flow from faucets or showerheads
- Slow-filling washing machines or toilets
- Inconsistent water pressure that fluctuates
- A sudden drop in pressure when multiple fixtures are in use
If you’re noticing these issues, it’s time to get to the root of the problem.
Common Causes of Low Water Pressure and How to Fix Them
1. Clogged Pipes and Mineral Buildup
Over time, mineral deposits, rust, and debris can accumulate inside your pipes, restricting water flow. This is especially common in older homes with galvanized steel pipes, which corrode and narrow over time.
How to Fix It:
- Try flushing your pipes by running water at full blast.
- If only one faucet has low pressure, remove and clean the aerator (a small screen inside the faucet head).
- If buildup is severe, professional pipe descaling or replacement may be necessary.
When to Call a Plumber: If multiple fixtures are affected and cleaning aerators doesn’t help, your pipes may need professional cleaning or replacement. Contact Silco Plumbing at 781-438-8925 for expert assistance.
2. Leaks in Your Plumbing System
Even a small leak in your plumbing system can reduce water pressure. When water escapes before reaching your fixtures, less pressure is available for normal use.
How to Check for Leaks:
- Look for damp spots, mold growth, or unexplained puddles around pipes and fixtures.
- Check your water meter. If it continues to move when all fixtures are turned off, you may have a leak.
- Inspect your outdoor hose bibs for dripping water.
Solution:
- Small leaks may be fixable with pipe sealing or tightening connections.
- Larger leaks require professional repair or pipe replacement to prevent further water loss.
3. Issues with the Pressure Regulator
Some homes have a pressure regulator, a valve that controls the water pressure entering the house. If the regulator malfunctions, it can either reduce pressure too much or cause excessive pressure, which can damage the plumbing.
How to Diagnose It:
- Sudden drops in pressure across multiple fixtures could point to a regulator issue.
- Test your water pressure with a gauge (available at hardware stores). Normal home pressure should be between 40-60 psi.
Solution:
- If the pressure is too low, adjusting or replacing the regulator can help. This should be done by a licensed plumber to ensure correct calibration.
4. Municipal Water Supply Problems
Sometimes, the issue isn’t in your home at all—it’s coming from your local water supply. Municipal work, main line breaks, or general system inefficiencies can cause temporary or long-term low pressure.
How to Check:
- Ask your neighbors if they’re experiencing similar water pressure issues.
- Contact your local water supplier to check for ongoing maintenance or problems.
Solution:
- If the issue is temporary, patience is key.
- If low pressure is a long-term problem, installing a water pressure booster pump can help regulate and increase water flow into your home.
5. Partially Closed or Faulty Shut-Off Valves
Every home has main shut-off valves that control water flow. If these valves aren’t fully open, they can restrict water pressure.
How to Fix It:
- Locate your home’s main shut-off valve (usually near your water meter or where the main line enters the house).
- Ensure it’s fully open. If it’s a gate valve, turn it counterclockwise all the way. If it’s a ball valve, ensure it’s parallel to the pipe.
- Check individual fixture shut-off valves to confirm they are fully open.
6. Problems with Your Water Heater (For Hot Water Issues)
If only your hot water pressure is low, the problem could be your water heater. Sediment buildup in the tank can clog lines, or the unit may not be functioning efficiently.
Solution:
- Flush your water heater to remove sediment buildup (this should be done annually).
- Inspect the heater for leaks or signs of malfunction.
- If your water heater is over 10-15 years old, consider upgrading to a more efficient model.
7. Outdated Plumbing System
Older plumbing systems weren’t designed for modern water demands. Small-diameter pipes, corroded materials, or outdated configurations can restrict water flow.
Solution:
- If your home has old galvanized pipes, upgrading to copper or PEX piping can significantly improve pressure.
- A full re-piping project can improve water flow, prevent leaks, and increase the longevity of your plumbing system.
Preventing Future Low Water Pressure Problems
Once you restore proper water pressure, you’ll want to keep it that way. Here’s how:
- Schedule annual plumbing inspections to catch early signs of buildup, leaks, or pressure issues.
- Flush your water heater regularly to prevent sediment accumulation.
- Upgrade outdated pipes to ensure long-term efficiency and reliability.
- Use water softeners if you have hard water, as mineral buildup can quickly clog pipes.
When to Call a Professional
If you’ve checked for common issues and your water pressure is still low, it’s time to bring in the experts. Silco Plumbing specializes in diagnosing and fixing water pressure problems quickly and efficiently. Whether you need pipe repairs, pressure regulator adjustments, or a system upgrade, our team is here to help.
Don’t settle for weak water flow. Call Silco Plumbing at 781-438-8925 today to restore strong, steady water pressure in your home.