Experiencing low water pressure can be frustrating, especially when you need a strong shower or want to fill a bathtub. Low pressure in a well system has several possible causes, and understanding them helps you communicate effectively with your well technician and avoid unnecessary repairs. At 77 Water Well Inc., we diagnose pressure issues every day across North Houston, and the problems typically fall into a few common categories.
Pressure Tank Problems
The most common cause of pressure issues is a failing pressure tank. When the internal bladder ruptures, the tank becomes waterlogged and can no longer maintain the air cushion that provides steady pressure. Symptoms include rapid pressure pulsing, the pump running every time you use water, and a tank that feels heavy and solid throughout. A simple tap test—if the entire tank sounds the same rather than hollow at the top—confirms waterlogging. Tank replacement is straightforward and typically costs far less than pump replacement.
Pump Wear and Declining Performance
Submersible pumps gradually wear out over 10 to 15 years. Impellers can erode, bearings can fail, and motors can lose efficiency. A pump that's producing less water than it used to will struggle to maintain pressure, especially during peak demand times. We measure your pump's actual output against its rated capacity. If the pump is delivering significantly less than its specification, replacement is usually the best option.
Clogged Pipes, Filters, or Fixtures
Sometimes the problem isn't the well system at all—it's your plumbing. Mineral scale, sediment buildup, or corroded pipes can restrict water flow. If pressure is low at some fixtures but normal at others, the restriction is likely in the plumbing leading to the affected fixtures. Aerators on faucets can become clogged with debris, and whole-house filters may need replacement. Before assuming your pump is failing, check these simpler possibilities.
Dropping Water Table
In Texas, extended drought can lower regional water tables, reducing your well's yield. If your pump is already near the bottom of the well, even a modest drop in the water table can cause the pump to draw air or fail to maintain pressure. We measure your well's static water level and compare it to historical data. If the water table has dropped significantly, options include deepening the well, lowering the pump, or adding a storage tank system.
Experiencing low pressure? Call 77 Water Well Inc. at (281) 456-4556 for a complete pressure system evaluation.