If your hot water has a sulfur or rotten egg odor to it the odor is being produced right in the water heater.
Tankless water heater smelly water.
Either you have a gas or electric powered water tank heater the odds of getting smelly water are high but as long as the sulfur level in the tank is low unpleasant odor is under control.
If it is recommendation is to replace the anode not only because of the rotten egg.
This smell is the discharge side of the softener it is waste water.
Almost all water heaters have anode rods which in a cathode anode reaction produce excess ions that wear off the anode rod and adhere to the inside glass lining of the water.
To remove smell from water tank or when hot water heater smells like sulfur consider sanitizing the tank using hydrogen peroxide.
Make sure that the anode rod is not extremely depleted.
If your rotten egg smell is caused by stagnant water within the tank in most cases you probably need to.
Replacing an anode rod will most likely require a trained plumber.
If your water still smells when you turn on the cold water you probably have sulfate bacteria coming from your water source and need to treat the water coming into your home to address these issues.
In most cases the smell of sulfur will be caused by high magnesium content water that comes into contact with the original anode already present within the water heater.
These metal rods sacrifice themselves to rust and corrode first preventing the water heater tank from rusting.
Just turn on your cold water only if you don t smell anything then it is likely your water heater that is causing the odor.
You can t smell it at the heater and it takes a while to pass through the pipes to the fixture sink shower depending on the length of the pipe run.
Routine maintenance on the tankless water heater is as follows a every three months clean the inlet water filter b once a year flush the heat exchanger with food grade citric acid or vinegar c every three years pull out and clean the burners and fins of the heat exchanger.
Most odors reported on city water are from water heater smells.
How to reduce or eliminate rotten egg smell in a water heater.
Problem is the hot water from my tankless water heater system smells burnt almost like a charcoal or burnt wood.
At the same time had two 20 inch blue whole house water filter housing installed.
Just recently had a brand new condensing tankless water heater installed.
This red reset button may have gas leak because the seal has been damaged 3.
Tlc offers water treatment systems that can resolve this issue.
If the odor issue comes from the reaction between the magnesium anode and your water several options are available to you.
You can locate the gas leak on several areas of your tankless water heater and some of which are.
Showering atomizes some of the bath water making the odor that much more noticeable.
If the leak is from your temperature control this will require a full replacement 2.
If you stopped using the water for a long period the smell would concentrate and get really bad.