The most serious and potentially expensive reason for low water pressure occurs when old galvanized steel water pipes are corroded to the point that water flow is significantly restricted. These pipes corrode on the inside (so you usually can’t see the corrosion, but over time, the buildup of corrosion and scale gradually closes off the pipe.
This problem develops over decades, so the reduction in water flow is very gradual; you will not notice a sudden drop in pressure. However, if you move into an old house with steel pipes, the pipes may have significant corrosion to start with and the problem may worsen relatively quickly.
Unfortunately, the only solution for corroded pipes is to re-pipe the system with new copper or plastic water supply piping. It is the only way to solve the problem. Usually the best option for re-piping these days, in terms of cost and ease of installation, is to use PEX tubing rather than copper pipe.
Green Apple Plumbing & Mechanical are the experts you can trust. We have been serving the NJ area for years with professionalism and expertise. Customer service and care are always our number one priority. If you have any questions or concerns regarding any of your HVAC or plumbing needs call toll-free at 888-315-5564