How Often Should You Flush Your Water Heater in Vancouver?
Published: July 21, 2026 — CANRO Heating & Cooling — Greater Vancouver, BC
Recommended Frequency
For Vancouver municipal water (moderate hardness), flush your tank water heater annually. If you have a water softener, every 18-24 months is sufficient. If you have well water, flush every 6 months. Annual flushing removes sediment before it hardens and becomes difficult to remove.
Signs Flushing Is Overdue
Popping or rumbling noises when the water heater runs — sediment at the bottom traps water that boils and pops. Reduced hot water capacity — sediment fills space in the tank. Longer recovery time — sediment insulates the burner from the water. Cloudy or rusty hot water — suspended sediment or corrosion.
Professional Flushing vs DIY
DIY flushing using a garden hose ($0 cost if you have the equipment) is effective for light sediment. Professional flushing ($150-250) is recommended if: you have never flushed the tank, the tank is over 5 years old, or you hear signs of heavy sediment. A technician can break up compacted sediment that a garden hose cannot dislodge.