Water pressure is essential for the proper functioning of your faucets, shower and appliances. It is what brings the water through the pipes. However, too much pressure can be harmful to your pipes and appliances. Usually, this will be controlled by a pressure regulator that is installed on your water main line, after the main shutoff valve. While these devices are fairly durable, over time they can fail, so if you are noticing problems with your water pressure, this might be the source. Normally, your water pressure should be between 45 and 55, and you can adjust this using the regulator. It is fairly easy to test your current pressure by obtaining a pressure gauge that screws onto a spigot. If your pressure is too high, you need to have it adjusted as soon as possible. If you don’t have a pressure regulator installed for some reason, you should consult a plumber to have this done.