Water pressure is a Goldilocks problem — too low is annoying, but too high can quietly damage your entire plumbing system. Here's what you need to know.
The ideal range
Most homes should have water pressure between 40 and 60 psi. Below 40, fixtures feel weak; above 80, you risk damage. A simple gauge on an outdoor spigot tells you where you stand.
Why high pressure is dangerous
Excessive pressure stresses pipes, joints, and appliance hoses, leading to leaks, burst lines, and shortened lifespans for water heaters, dishwashers, and washing machines. It also wastes water.
The pressure-reducing valve
Homes with high incoming municipal pressure use a pressure-reducing valve (PRV) to keep household pressure in the safe range. When a PRV fails, pressure can spike — a common cause of sudden leaks and noisy pipes.
Fixing low pressure
Low pressure can stem from clogged fixtures, corroded pipes, a failing PRV, or supply issues. A plumber can diagnose the cause and restore proper flow.
Get it checked
If you've noticed banging pipes, frequent leaks, or appliance failures, having your pressure tested is a smart, inexpensive step that can prevent expensive damage.
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