Why Is My Water Pressure Low? Common Causes and When to Call a Plumber
Low water pressure can make everyday tasks frustrating. A weak shower, slow-filling sink, or sudden drop in water flow may seem minor, but it can sometimes point to a larger plumbing issue.
The cause may be as simple as buildup inside a faucet or showerhead. In other cases, low water pressure can be connected to a hidden leak, damaged pipe, valve problem, or aging plumbing.
If you are experiencing low water pressure in Merrimack, NH, or a nearby community, here are some of the most common causes and signs that it may be time to call a professional plumber.
Is the Problem Affecting One Fixture or the Whole House?
Start by paying attention to where the pressure problem is happening.
If only one faucet or shower has weak flow, the issue may be limited to that fixture. Mineral buildup, debris, or a worn component can restrict water flow.
If several fixtures are affected, the problem may involve your home’s pipes, valves, water supply, or pressure-regulating equipment.
Common Causes of Low Water Pressure
Clogged Faucets or Showerheads
Mineral deposits and debris can collect inside faucet aerators and showerheads over time. This buildup can restrict flow and make the pressure feel weaker.
Cleaning or replacing the affected fixture may solve the issue. If multiple fixtures are affected, there may be another cause.
A Partially Closed Water Valve
Valves control the flow of water into your home. If one is not fully open, it may reduce pressure throughout the property.
A plumber can inspect the system and determine whether a valve is contributing to the problem.
Hidden Plumbing Leaks
A leak can reduce the amount of water reaching your faucets, showers, and appliances.
Warning signs may include:
- Water stains or damp spots
- Musty odors
- Water beneath sinks
- The sound of running water when fixtures are off
- An unexpected increase in water use
- Low pressure throughout the home
Professional leak detection can help locate the source before it causes more damage.
Increased Water Use
Water pressure may temporarily drop when several fixtures or appliances are being used at the same time.
During the summer, outdoor watering and heavier household use may also make pressure changes more noticeable. If the pressure stays low even when little water is being used, another plumbing issue may be responsible.
Aging or Damaged Pipes
Older pipes can develop corrosion, buildup, cracks, or other damage that restricts water flow.
A plumber can inspect the system and determine whether pipe repair or replacement is needed.
Pressure-Regulating Valve Problems
Some homes have a pressure-regulating valve that controls the water pressure entering the plumbing system.
If the valve is worn, damaged, or incorrectly adjusted, the pressure may become too low or inconsistent.
When Should You Call a Plumber?
Consider contacting a plumber when:
- Several fixtures have low water pressure
- The pressure drops suddenly
- The problem continues throughout the day
- You notice damp spots or water stains
- You hear running water when fixtures are off
- Cleaning the affected fixture does not help
- The pressure frequently changes
A professional plumber can inspect your fixtures, pipes, valves, and other system components to determine what is affecting your water flow.
Get Help With Low Water Pressure in Merrimack, NH
Low water pressure may be caused by a simple fixture issue, but it can also be a warning sign of a leak or damaged plumbing.
JMS Plumbing & Heating provides residential and commercial plumbing services in Merrimack, NH, and surrounding communities. With more than 20 years of experience, the team can help with leak detection, pipe repair, faucets, showers, water lines, water heaters, and other plumbing needs.
Restore Reliable Water Pressure
Do not let low water pressure disrupt your home or business. Contact JMS Plumbing & Heating to identify the problem and find the right solution.
Visit jmsplumbandheat.com to request your free estimate today.
