How often should you flush a water heater?
Once a year for most homes. Here is why, and when to do it more often.
By Ann Lee · Oct 8, 2026 · 1 min read
Most homes should flush the tank once a year.
When to do it more often
| Water | Flush every |
|---|---|
| Soft | 12 months |
| Hard | 6 months |
💡 Tip
turn off the power or gas first.