April 14, 2026
 | 
By Mark Paup

Why Flushing Your Water Heater Is Important



When your water heats up, these minerals sink to the bottom of the tank. Over time, they build up and can become thick and hard. At Golden Rule, we have seen sediment turn into a solid layer that looks like rock. 

How Sediment Hurts Your Water Heater 

Uses More Energy 

Sediment sits between the heating element and the water. This makes it harder for your heater to warm the water. 

Because of this, your system must work longer and use more energy. This can raise your energy bills. Golden Rule often finds sediment buildup when customers complain about high utility costs. 

Less Hot Water 

Sediment takes up space in your tank. That means there is less room for hot water. 

For example, a 40-gallon tank might only give you about 25 gallons of hot water if there is a lot of buildup. At Golden Rule, many homeowners call us because they run out of hot water too fast. 

Shorter Lifespan 

Sediment can make your water heater overheat. This puts stress on the tank and other parts. 

Over time, this can cause leaks or even break the system. Water heaters are expensive, so you want yours to last as long as possible. Golden Rule recommends flushing to help protect your system. 

Poor Water Quality 

Sediment can also affect your water. You may notice cloudy water, bad smells, or strange colors. 

Flushing the tank often fixes problems; it also makes the water better. 

Lower Water Pressure 

Sediment can break free and move through your pipes. This may clog parts of your plumbing. 

When that happens, your water pressure can drop. Regular service from Golden Rule helps stop this before it becomes a bigger problem. 

Why It’s Worse in Salt Lake City 

If you live in Salt Lake City or other parts of Utah, this problem is even bigger. That is because the water there is very hard and full of minerals. 

At Golden Rule, we see sediment build up much faster in Utah homes. It also becomes thicker and harder than in other areas. 

This can make your water heater act smaller than it really is. It also makes the system work harder, which raises your energy bills. Over time, it can cause the heater to fail sooner. 

If you do not have a water softener or regular maintenance, your water heater is under a lot of stress. 

How Often Should You Flush Your Water Heater? 

Most homes should flush the water heater once a year. But in hard water areas like Utah, Golden Rule suggests flushing every 6 to 12 months. 

Older systems may need it more often. Keeping up with this simple step can help you avoid costly repairs. 

FAQ

How do I know if I have sediment buildup? 

You may hear popping noises, run out of hot water faster, or see dirty water. Golden Rule can check your system to be sure.

Can sediment damage my water heater?

Yes. Over time, it can cause overheating and damage that may need a full replacement.

Should I flush my water heater myself?

Golden Rule can do it with attention to detail and ensure it is completed correctly.

Do tankless water heaters need flushing?

Yes, they need a process called descaling to remove minerals.

Will a water softener fix the problem?

It helps reduce minerals, but you still need to flush your system on a regular basis. 

Key Takeaway 

Flushing your water heater helps it work better and last longer. Sediment buildup can lower your hot water, raise your bills, and damage your system. This is a bigger problem in places like Utah with hard water. Regular service from Golden Rule keeps your water heater running well. It also saves you money in the long run. 

 

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