How often should you check under your sinks for leaks?
Every 6 months (twice a year).
How to do it
Look under every sink and behind toilets with a flashlight. Feel for damp wood and check the shutoff valves still turn.
Why it matters
A slow drip does its damage long before anyone notices a puddle.
Recommended interval: every 6 months, per University of Georgia Cooperative Extension.
General guidance for a typical home; the manufacturer's instructions come first.