How can you tell if poor water pressure is caused by problems with the supply piping or the service piping?
• Consistently poor water pressure indicates that there is a problem with the supply piping (or the main source of water). • Water pressure that is acceptable for one or two seconds, then diminishes, indicates that there is a problem with the service piping that comes from the street to the house. • The reason for this is different pipe sizes. The service pipe is typically larger than the supply piping. If the supply piping is corroded or restricted, water will exhibit a consistently weak pressure. On the contrary, if the supply piping is good and the service pipe is corroded or restricted, the supply piping will fill and provide good volume for only a second or two, because the corroded service pipe will not be able to keep the supply piping filled. • Learn more about plumbing.
