We've heard of plumbers or handymen advising people to remove the sacrificial anodes from their water heaters as a solution to smelly water. It's a solution all right, but one that will ensure your water heater rusts out in record time. There is a reason why removing an anode voids the warranty.
... It you HAVE a removable anode, removing it actually will destroy your tank over time because it will not be there to ``suck'' the ions that cause ``rust'', normally present in all water to some degree, away from the iron and onto itself.
They protect the tank by attracting corrosive elements, ensuring the integrity of the water heater's interior. Even in areas with soft water, the presence of oxygen and other natural elements can lead to corrosion, making the anode rod indispensable.
Anode rods are an essential component of tank-style water heaters. Most anode rods are sacrificial, meaning they are designed to corrode (instead of your water heater lining). Because they are meant to break down, they wear out every few years and need to be replaced.
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.
The Impact Wrench: An Effective Tool for Anode Rod Removal
This tool stores energy in a rotating assembly. Then releases it to the output shaft, enabling it to remove even the most stubborn anode rods.
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.
Can You Cut Water Heater Anode Rod? Yes, you can cut your sacrificial anode rod, whether it is magnesium or aluminum, to replace it. To do this, use a pair of gloves and a saw and cut as you remove the old anode.
You'll spend between $20 and $50 on the rod. If you choose to hire a water heater pro to get the job done, an anode rod replacement will cost you between $200 and $300. If you're not sure whether to handle this repair yourself, first examine your water heater.
Magnesium rods offer better protection and water quality, while aluminum rods are more durable and ideal for hard water. Powered anode rods are the very best option for those seeking a long-term, low-maintenance solution.
Note: If your anode rod is on the top of the heater, you will only need to allow the tank to drain about a quart or 1/2 a gallon of water. If the anode is located on the side, drain the tank until the water is below the anode rod port.
Aluminum and aluminum/zinc anode rods are used in similar ways as magnesium sacrificial rods. However, aluminum rods are the better choice for a water heater that heats up sulfate-tinged water. Sacrificial anodes change sulfates into hydrogen sulfides.
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 need a socket wrench or breaker bar to take out the anode rod. The usual size is 1-1/16 inches, but it can change based on the heater. If the anode rod is really stuck, an impact wrench can help.
While sacrificial anode rods are critical to the health of your water heater tank, they can sometimes create issues with smelly water. For example, a corroded aluminum or magnesium sacrificial anode rod is a common cause behind water having a rotten-egg smell.
Changing the Rod
I found using that inexpensive impact wrench was by far the easiest method and takes just a few seconds. If you don't have a lot of ceiling height above your water tank, the rod may have to be cut in half to lift out all the way.
Powered anode rods improve the lifespan of your water heater. They provide robust and long-lasting protection against corrosion and limescale buildup.
Because they can break and are expensive, powered anodes are not such a bargain for regular water heater situations. And they do require the power to be on to function.
rust-coloured hot water – that smells – is a classic sign of actual, and serious, tank corrosion. With a bit of luck, it's the corroded and rusty anode rod that's discolouring your water and making it stink and taste weird. Either way, you do need to call your friendly local plumber before that tank is completely shot.
Its magnesium (very soft metal), so cutting it shorter accordingly is very easy. Taking the old rod out is somewhat difficult. You must have the correct socket size.
Over time, the metal in the anode rod will corrode away itself, leaving only a protective coating around the metal walls and bottom of your hot water tank.
Removing an anode rod from a water heater may seem daunting, but with the right tools and techniques, it's a manageable task. Anode rods are important for stopping rust in your water heater. Knowing how to replace them is key for keeping your system working well for a long time.
Typically, you use a socket wrench or breaker bar to remove or install an anode rod with a 1 1/16-inch socket. A breaker bar proves particularly helpful when the rod fits tightly and is difficult to remove.
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%. This is especially true if you have hard water or use a water softener.