Shut Off Water Supply
10 minutesLocate angle stops under sink; close hot and cold valves.
Field context
This workflow is part of 3 niche fields
Complete guide for fix kitchen faucet leak — step-by-step workflow, tools, checklist, and expert tips to get started.
Locate angle stops under sink; close hot and cold valves.
Identify leak at spout, base, or supply lines.
Remove handle; swap cartridge matching manufacturer model.
Open shutoffs slowly; check for leaks at all joints.
Key benchmarks for fix kitchen faucet leak.
| Location | Common Cause | Fix |
|---|---|---|
| Spout drip | Worn cartridge | Replace cartridge |
| Base leak | O-ring | Replace O-ring |
| Supply line | Loose nut | Tighten or replace line |
While under sink, swap old braided lines — they fail without warning.
Phone photo saves hours if parts fall inside cabinet.
Hand-tight plus quarter turn on compression fittings only.