The water pressure regulator is used to lower the water pressure as it comes into your home. Most urban water lines start at 150 to 200 pounds per square inch (psi), which is way too much pressure for a residential home.
Setting your water pressure too high can lead to leaking pipes and even explosions. Be sure your water pressure stays within the optimal psi to avoid any damages to your home.
For residential homes, optimal water pressure is usually between 40 to 50 psi. If yours is above 50, you can lower it; if it’s below 50, you can raise it.
Old locknuts tend to loosen over time. If you notice that your water pressure is really high, it may be because your locknut is loose. You can replace it with a new locknut to tighten your adjusting bolt if you need to.
It’s better to adjust slowly than trying to increase the pressure too quickly. You can always go back and increase the water pressure more if you need to.
If you need to make a few more adjustments, turn the tap off and use your wrench to tighten or loosen the adjusting bolt again.
Pressing the locknut and the bolt head too close together can damage them.
You may also need to replace your water pressure regulator. A professional can determine how old it is and if it needs to be replaced.