On average, flushing a water heater takes about one to two hours, depending on the tank size and the amount of sediment to be removed. This is slightly longer than it takes to drain the tank as you add another step to the process.
Generally, it takes about 30 minutes to an hour to drain the average 50-gallon water heater completely. However, the time may vary depending on the size of the tank and the amount of sediment present. After the water heater tank is empty, it's time to flush it.
If neither you nor a professional have flushed your water within the last five years, Water Heaters Now recommends not flushing it yourself.
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.
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.
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.
On average, flushing a water heater takes about one to two hours, depending on the tank size and the amount of sediment to be removed. This is slightly longer than it takes to drain the tank as you add another step to the process.
The frequency of anode rod replacement depends on several factors, such as water quality, usage patterns, and the type of anode rod installed. In most cases, we recommend inspecting and potentially replacing the anode rod every 3 to 5 years.
Perform a vinegar soak.
Vinegar is part of clearing and cleaning a clogged drain, and it's also helpful in removing sediment from water heaters. After you've drained your hot water tank, you can pour a gallon or so of vinegar through it.
Accordingly, when the water heater is not flushed, the built-up sediment hampers the functioning and performance of the heater and also damages the heater and your plumbing system.
Water Heater Lifespan
If your tank water heater is more than 10 years old, it may be time to consider replacing it. With proper maintenance, a tank water heater tank should last six to 12 years. A tankless water heater can last for more than 20 years. Check your water heater's warranty for the most accurate timelines.
Step 5: Turn on a hot water faucet
This helps to alleviate pressure and allows the tank to drain quicker.
In general, 40-gallon heaters last eight years, while 50-gallon heaters can last 12 years. This is because 50-gallon heaters have thicker tanks. As a result, they are less likely to develop leaks. A 50-gallon water heater will last about 8 to 20 years, which is longer than most water heaters.
An important part of your water heater, it moves cold replacement water to the bottom of the tank when you use hot water; otherwise, both will mix and reduce the water temperature. Anode Rod Replacement: While an anode rod costs between $20 and $50, a plumber can replace it for $50 to $150.
Poor water heater performance can sometimes stem from an anode rod that's overdue for replacement. If you notice signs of poor performance, such as discolored or rusty water, sulfuric or rotten egg smells, popping sounds from the tank, or high heating bills, inspect your water rod to determine if it needs replacement.
If you suspect your water heater is more than 10 years old—it is time to consider replacing it before you're left with an emergency decision. To determine the age of your water heater, you'll need to identify the Brand Name and Serial Number for your unit.
Open the hot water tap, similar to a sink faucet that is closest to the water heater. This helps ease pressure and lets the tank drain faster. Once you open this valve, the water will flow out of the tank. Be patient, as it may take a bit to drain if the tank is full or there is a considerable amount of sediment.
Rumbling, popping, or hissing sounds
Water heater noises are a common indicator of sediment buildup in water heater tanks. If your water heater is making popping, creaking, hissing, or rumbling sounds, it's likely because minerals in the water have formed a layer on the surface of the water heater element.
Sediment buildup is a common issue in water heaters, particularly in areas with hard water. Over time, minerals such as calcium and magnesium can accumulate at the bottom of the tank, forming a layer of sediment. This sediment can impede the flow of water, causing the heater to drain slowly.
Expect a pro to charge you between $75 and $200 to come to your home to flush your water heater, depending on where you live. While this cost deters many homeowners from performing this annual maintenance, it can extend the water heater's lifespan by years, making it worth the additional cost.
In other words, it “sacrifices” itself to extend the life of the water heater. Most water heater manufacturers will recommend inspecting the condition of the sacrificial anode every one (1) to three (3) years and replacing it when it has been consumed more than 50%.
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.