Why is My Water Pressure Low? 7 Common Causes & Fixes

What can be worse than turning your shower knob on, only to find the water’s not even enough to wash the soap off of you? That’s a bummer, right?

In Maryland, low water pressure is a problem many homeowners face. While some try to DIY a fix, many solutions aren’t effective without addressing the root cause. If you are tired of the trickle and need a professional right now, our low water pressure plumbers can diagnose and fix your system fast.

So, what leads to a low water pressure scenario in Maryland? Let’s find out.

Water gushes forcefully from a green outdoor well pump, spraying droplets in the air. A house and trees are visible in the blurred background on a sunny day, highlighting the effectiveness of quality well pump installation.

1. Poor Installation

Poor quality installation of faucets and fixtures in your bathroom can restrict flow. This is a common cause for people experiencing low water pressure in their showers. If fixtures aren’t set correctly, leaks or faulty valves within the plumbing system can hamper the entire flow.

2. Plumbing Leaks

A leak anywhere in your home can hamper the regular water flow. Whether the leak is at a specific faucet or in the primary main line, it bleeds off the pressure required for your home to function.

3. Normal Wear and Tear

Older plumbing systems face corrosion and buildup that impacts water pressure. If your system is aging, these issues arise more often, requiring a professional evaluation to determine if pipes need cleaning or replacement.

4. Municipal Water Supply Issues

Sometimes the problem isn’t inside your home. Municipal supply issues can affect your neighborhood. If your neighbors are also experiencing a drop, it is advisable to check with your city council. If the city pressure is simply “always low,” a water booster pump may be your best solution

5. Clogged Water Filters

Water filters accumulate debris and impurities over time. When these filters clog, they create a “dam-like” situation, significantly dropping the pressure throughout the house. Regular filtration maintenance is key to keeping your water flowing.

6. Clogs & Dirt in the Faucet

If you only have low pressure in one spot, like the kitchen sink, check the faucet aerator. Remove the tip of the faucet and turn the water on; if the flow is back to normal, you just need to clean the faucet. If the pressure remains low, the issue is deeper in your plumbing.

7. Master Shut-Off Valve is Partially Closed

The main shut-off valve determines your home’s total water flow. If you’ve recently had work done, check your basement or garage to ensure this valve is fully open. A gate valve should be turned completely anti-clockwise, and a ball valve handle should be parallel to the pipe.

Troubleshooting at a Glance: Who to Call?

If you notice... Likely Cause Required Action
Low pressure at only one faucet Clogged aerator or fixture leak DIY Fix or Local Repair
Pressure drops when toilet flushes Undersized piping or failing tank Contact a Specialist
Sputtering air or pulsing water Failing well pump or broken line Call Emergency Service
Gradually decreasing pressure Clogged filter media or corrosion Schedule Evaluation

FAQ

Can low water pressure damage my appliances?

Yes. Appliances like dishwashers and washing machines are designed to operate with steady water flow. Low pressure can cause them to cycle longer, leading to unnecessary wear and tear or improper cleaning.

It can be both. If you have low pressure at only one faucet, it’s likely a plumbing or fixture issue. If the whole house is low and you are on a well, the problem is usually with your well pump, pressure tank, or water treatment system.

This is often caused by an undersized pipe or a failing pressure tank that can no longer handle the “demand” of multiple fixtures at once. A constant pressure system (VFD) is the best professional solution for this.

Most diagnostic and repair services, such as tank calibration or filter maintenance, can be completed in a single visit. If a well pump or major component needs replacement, our emergency teams are equipped to handle it fast to prevent total water loss.

Stop Fighting the Low Water Pressure Alone

Sudden drops in pressure often signal an emergency well pump failure or a major leak that could lead to total water loss. At National Water Service, our licensed plumbers and water technicians have helped Maryland, DC, and Virginia homeowners restore their flow for over 47+ years.

Don’t wait until the water stops completely. Contact Our Low Water Pressure Specialists Today or call us at 301-854-1333 for immediate professional help.