Low water pressure in shower: causes and fixes
Low shower pressure is often a clogged showerhead, a cartridge issue, or a whole-home supply problem. Use this checklist to pinpoint it fast.
First determine: is it one shower or the whole house?
If it’s only one shower
1) Clean the showerhead
Mineral buildup can choke flow.
See top-rated options on Amazon for “showerhead descaler”2) Check the shower valve/cartridge
A failing cartridge can restrict flow or temperature mix.
3) Check for a partially closed shutoff
Some showers have local shutoffs accessible behind an access panel.
If it’s the whole house
- check the main shutoff is fully open
- check pressure regulator (PRV) if you have one
- ask neighbors if they also have low pressure
When to call a plumber
If pressure drops suddenly across the house, or you see leaks/wet spots, call.
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