One of the important steps to preventing water damage in your home is to regularly inspect all the angle stops in your home. And when necessary, replace them.
Here’s a great video on how to change out a water supply valve.
These are the shut-off valves located either behind your toilet or under your sink (kitchen, bathroom or wherever)
Timely changing of these valves can prevent costly and troublesome water losses in your home.
The San Diego Insurance Blog 