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How Plumbers Avoid Rust and Sediment Buildup in Water Heaters

Rust and sediment are among the key concerns with water heaters. Left unchecked, these substances can undermine energy efficiency and shorten a system’s useful life. Let’s explore how plumbers deal with that accumulation.

Routine Maintenance

A common mistake homeowners make is not servicing their water heaters until there’s a problem. The industry recommends a more proactive approach through annual maintenance. During that appointment, a plumber will perform a multipoint inspection, clean the equipment, and take measures to tackle rust and sediment accumulation.

Proper Temperature Adjustment

A higher water temperature accelerates the formation of rust and the accumulation of sediment. Therefore, the goal should be to keep the temperature as low as possible while still maintaining comfort. Consider that most water heaters ship from the factory set to 140 degrees Fahrenheit. The Department of Energy recommends 120 degrees. It delivers comfort and avoids scalding while ensuring good efficiency and lowering the rate of sediment buildup.

Tank Flushing

Some accumulation of rust, limescale, and other sediment is all but unavoidable in a traditional tank water heater. That’s why it’s so important to flush the tank at least once a year. A plumber will attach a hose to the drain valve to empty the entire contents of the tank. In some cases, it may be necessary to use a disinfecting agent at this step. Finally, the plumber will refill the tank.

Descaling

On-demand water heaters don’t have tanks but rather heat water as needed. That said, they’re still affected by rust and limescale, which can build up on components and in pipes, tubes, and valves. The solution to this problem is descaling. This is where a plumber uses a recirculating pump to cycle a cleaning agent through the tankless water heater. In most cases, you only need to use a vinegar and water mixture. If the buildup is severe, you may need a chemical cleaning agent instead.

Anode Rod Replacement

Tank water heaters have an anode rod to attract rust and sediment through electrolysis. A plumber must check the rod annually and replace it as needed. The typical life span of an anode rod is between three and five years.

Water Filtration and Conditioning

Depending on your water quality, it may be necessary to filter and/or condition the water before it reaches the water heater. Households with well water, for instance, may need a sediment filter to prevent dirt, silt, and other materials from entry. If, on the other hand, you have hard water, there are a couple of solutions. An anti-scale device will change the minerals chemically to make scale buildup less likely. A water softener will remove the calcium and magnesium from the water.

If you need water heater maintenance or repair in Waukesha, WI to avoid rust and sediment in your system, call Jeff’s Custom Care today, or contact us online.