For more than 12 years, the Corro-Protec anode prevents and stops corrosion inside water heaters.
Only 24hrs after the install and I would say 99% of my water smell is gone. I would contribute the 1% to just being well water but, the rotten egg smell is gone. I aluminum and magnesium rods with no positive result as my hot water would smell up the entire house with one shower. This is well worth the investment. I highly recommend.
We just bought an older home (built in 76) and the water smelled awful! After you ran it for a few minutes it turned black. It’s city water so it wasn’t a well issue. After some research we decided we needed to replace the anode rod and flush the water heater, which looked brand new. We did this and put the Corro-Protec rod in and haven’t had a problem since. It took about a day for me to not notice the smell anymore. I’m not sure if there was some existing sediment or whatnot that needed to be flushed away, but this thing is amazing!!! Immediately improved the odor to barely noticeable! I should mention that. So glad we bought it. Highly recommend!!!
I’m pretty critical of snake oil cures given that I’ve gone through 4 anode rods in the last 3 years since I bought a new house, on a well with softened water. The aluminum anode worked best but crapped out in a year while the magnesium rod lasted but gave the awful smell. The reason I went with this unit was that I didn’t have to keep the water heater on high to help kill off the odor. Or so I hope. I just installed this today as my water was starting to smell like sulfur in the shower after a new rod change plus peroxide treatment a month ago. I did nothing but install the new one which literally took 10 minutes. 4 hours later the smell is all but gone.