What Causes Low Water Pressure?

July 26, 2018

A drop in water pressure is cause for concern. It makes basic tasks like taking a shower difficult or flushing the toilet difficult. You might be wondering if your water service is going to go completely kaput in the near future.

To resolve an issue with low water pressure in Mahopac, NY, you may need the help of a professional plumber or well pump company. Let’s look at the leading cause of low water pressure and what to do in each situation.

Metropolitan vs. rural areas

If you’re in a well-populated area, then the leading cause of low water pressure is a main water line leak or break. Water companies should provide a fix for this. In rural areas, this is usually the result of a water delivery issue from a well or well pump. It could also be the result of a water line leak or break.

Testing water pressure

One way to test whether the problem is local or throughout the home is by testing the water pressure in various parts of the home or business. If just the kitchen sink has low pressure or only the toilet has low pressure, then you know the problem is localized. In other words, there may be a blockage or other issue that’s resulting in the low water pressure. If it’s throughout the whole home, then you probably have a more general problem like a water line break or a well pump problem.

Check the pressure reducing valve

The pressure reducing valve (PRV) is a bell-shaped device located on the water line where it enters the home. Check it and make adjustments to see if the water pressure changes at all. You can make the adjustment by moving the valve clockwise, thereby increasing water pressure. A faulty PRV could be the source of low water pressure in Mahopac, NY.


Leaks on any faucet, toilet or showerhead can be the source of high water bills. They may also cause low water pressure. Check for leaks especially in the bathroom. Toilets that won’t stop running or are leaking are a leading cause of this problem. To check if the toilet is leaking, place a few drops of food coloring in the tank. Leave it alone for an hour and don’t flush. If the color has leaked into the toilet bowl, then you have a leak.


When you’re looking for a plumber to assist with low water pressure in Mahopac, NY, trust Affordable Plumbing & Heating, Inc. We’ve been a leading plumbing and heating service since 1983. We resolve a variety of issues, including low water pressure. We offer a full range of services for well water, water testing and well pump installation. With customer service that is second to none and 24-hour well water pump service, we will complete your project in a timely manner with impeccable skill.

In addition, our emergency services are available 24 hours a day, seven days a week with no additional charges. No matter what time of day or night, you can call us or visit our website for fast and friendly service. Contact us right now to learn more and receive a free consultation.

Schedule Service Today

Categorised in:

Affordable Plumbing & Heating, Inc.