It's generally a good idea to drain your water heater at least once a year, according to both Bob Vila and Family Handyman. If you live in an area with hard water (that has high mineral content), Angi recommends you may want to drain it every six months, or so.
Keep an eye out for debris suddenly showing up in your water. If you notice sediment or any brown sludge coming out of your faucet, that's probably an indication that it's time for a water heater flush. If you see any of these signs, it's a good indication that your water heater needs maintenance.
Should you drain your hot water heater every year? Yes, but that's really just the bare minimum. You should really drain and flush your water heater twice-per-year: once in the spring, and then again in the fall. The reason why comes back to what a water heater is flushing out: minerals and sediment.
You'll know when your water tank is full when the hot water tap, which you turned on earlier, runs normally without any residual air coming out.
It's generally a good idea to drain your water heater at least once a year, according to both Bob Vila and Family Handyman. If you live in an area with hard water (that has high mineral content), Angi recommends you may want to drain it every six months, or so.
You can flush your water heater yourself if it's done on a regular basis. This guide will take you through the steps to drain and flush a gas or electric water heater. Learning how to clean a water heater is an essential part of maintaining your plumbing system.
Over time, the number of sediment increases, leading to problems with the water heater. Sediment can begin the process of corrosion and can clog the valves inside the water heater tank, leading to leaks and other issues. Both of these problems decrease efficiency and can result in costly repairs.
The best way to keep your hot water heater operating at its best is to flush and clean it on a regular basis. Flushing and cleaning your hot water tank is a relatively simple task that can be completed in less than one hour.
It is recommended that you flush your water heater at least once per year. Doing so will help to prevent the potential problems that sediment can bring over time. Typically, it takes one to two hours to flush a water heater. The size of your tank will impact the amount of time it takes to drain.
If neither you nor a professional have flushed your water within the last five years, Water Heaters Now recommends not flushing it yourself.
As a general rule of thumb, it's recommended that you drain your water heater at least once per year. However, homes with hard water require more frequent draining. This process should take place once every six months in order to maintain optimal performance.
Make certain the drain valve is completely closed. Open the shut-off valve in the cold water supply line. Open each hot water faucet slowly to allow the air to vent from the Water Heater and piping. A steady flow of water from the hot water faucet(s) indicates a full Water Heater.
“Sediment can build up over time if the water heater is not drained annually,” explains Parker Beck, Birmingham-based Operations Manager at ServiceMaster by Don Beck. Draining the water heater once a year is recommended, but excess sediment can accumulate faster if you live in an area with hard water.
It's better to leave the hot water heater on all the time, rather than turning it on and off. This is a very common energy saving myth. But in fact, you really don't need to be heating your water all the time. Your immersion heater or boiler will heat up hot water which is stored in a tank.
Open the hot water tank drain valve. Let the water run out the garden hose. This can take 20 to 60 minutes, depending on how big the tank is. Be careful not to damage or break the drain valve when you open and close it.
Flush your water heater every six months or so. If you have harder water, or water that contains more minerals, you may want to flush it more often.
Water heater maintenance consists of flushing the unit, checking and changing the anode rod if needed, inspecting for rust or leaks, and testing the thermostat and valves. The flush is the most important step of water heater maintenance, and something you do not want to skip.
Average Lifespan Of A Hot Water Heater
With regular inspection, draining, and flushing, you can expect a gas water heater to last anywhere from 8-12 years and an electric water heater to last anywhere from 10-15 years.
NOTE: If your water heater has been installed more than five years without any maintenance, it may be too late to flush. If the tank will not drain, sediment likely has built and clogged the drain.
Common signs that sediment buildup is significant include bubbling and gurgling sounds and diminished hot water when bathing, cooking, or cleaning. You may also notice water discoloration, a leaking pressure relief valve, or cracks in the tank or its connections.
The national average cost to flush a water heater is $160, but prices can vary in increments based on the tank size. A 30-gallon tank will cost between $90 and $120 on average, while a 70-gallon tank could cost anywhere between $180 and $250.
Sometimes, you'll just need repairs, but serious issues call for replacement. For example, a 30-year-old water heater certainly needs to be replaced, but a younger one with a minor problem may be able to get by with some simple repairs.