How often should a 2-person house flush their water heater tank?

One or two people in a home: Inspect the water heater every six months and drain it every 12 months. Three to five people in a home: Inspect the water heater every four months and drain it every eight months. Six or more people in a home: Inspect the water heater every four months and drain it every six months.

Asked by Elizabeth T · Last updated 5 years ago · 1.6M views · SOURCE