Replace a Shower Head

10-minute upgrade, no plumber needed. A new low-flow head can cut shower water use by 30–60% and pay for itself in a few months.

Difficulty: Easy Time: 10 min Cost: $20–$80

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Tools

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New shower head
Look for the EPA WaterSense label — uses ≤2.0 gpm vs. older 2.5–4 gpm heads
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PTFE plumber's tape (white)
aka Teflon tape, ~$2

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1

Unscrew the old head

Wrap the connector nut in a cloth (so the wrench doesn't scratch finish), turn counterclockwise. Most come off by hand once loosened.
2

Clean the threads

Wipe old tape and gunk off the shower-arm threads with the rag.
3

Wrap fresh tape

Wrap 3–4 turns of PTFE tape clockwise around the shower-arm threads (clockwise so it tightens, not loosens, as you screw on the new head).
4

Install and test

Screw the new head on hand-tight, then snug 1/4 turn more with the wrench. Run water — if it drips at the connection, add another half-wrap of tape.