Your water heater is one of the most important appliances in your home—but it’s often the most overlooked when it comes to maintenance. Over time, sediment builds up in the bottom of your tank, reducing efficiency and even shortening the lifespan of the system. A regular water heater flush can help you avoid unexpected issues and keep hot water flowing smoothly.
When Should You Flush Your Water Heater?
For most homes, it’s recommended to flush your water heater once a year. However, if you live in an area with hard water, you may need to do it more often—every 6 months is a safe bet. Staying on top of this task can help extend the life of your water heater and maintain optimal performance.
Signs Your Water Heater Needs a Flush
- Popping or rumbling noises – This sound is caused by sediment hardening and trapping water bubbles.
- Inconsistent water temperature – If your hot water goes from warm to cold suddenly, sediment might be interfering.
- Reduced hot water supply – Sediment buildup takes up space in the tank, meaning less room for hot water.
- Rusty or discolored water – A flush can help remove mineral buildup and clear out corrosion.
- Higher energy bills – A struggling heater has to work harder to do its job, using more energy in the process.
How to Flush Your Water Heater
If you’re comfortable with DIY maintenance, here’s a basic outline of how to flush your tank-style water heater:
- Turn off the power or gas supply to the unit.
- Shut off the cold water valve that feeds the heater.
- Connect a garden hose to the drain valve at the bottom of the tank.
- Run the hose to a safe drain or outside area.
- Open the drain valve and let the water flow out completely.
- Turn on a hot water tap in your home to allow air into the system.
- Once drained, turn the cold water valve back on briefly to flush out remaining sediment.
- Close the drain valve, remove the hose, and restore power or gas to the heater.
- Check for leaks and allow the tank to refill.
⚠️ Always consult your water heater’s manual or contact a professional if you’re unsure about any step. Improper flushing can lead to damage or injury.
Let Team Bob’s Handle It
Not into DIY—or just want peace of mind? Team Bob’s Heating, Cooling, Plumbing & Electrical offers professional water heater flushing services to homeowners across Northern Michigan. Our trained technicians will handle everything quickly and safely, helping extend the life of your system and keep your home comfortable year-round.
Need more than just a flush? We also offer water heater installation and replacement, drain cleaning, and full heating services.
Contact Team Bob’s today to schedule your water heater flush and keep things running smoothly.
