Water heater surgery – remove the anode = remove the smell
The farmhouse is cursed with horrific well water … not bad, not terrible, HORIBLE! The water residential water goes through a pH balance, water softener, and deodorizer before entering a large pressure tank. From there, it is either served as "cold" water or goes through the geothermal preheater and then the electric hot water heater tank.
This setup is far from ideal but is the fact. The problems are numerous. First, there is no such thing as cold water in the summer time because the nice cold water from the well ends up sitting in a 30+ gallon pressure tank in the utility room which on a typical summer day is between 75-80 degrees F. The tank is needed for the pressure flow toilets. Given that the tank ends up with warm water in the summer and there is a geothermal preheater in the winter, I should have installed an instant hot water system. But, the holding tank was a last minute fix. Alternately, the pressure tank could be a lot smaller. I only need about 2 gallons since the toilets are the only "high rate" consumers and they are 1.5gpf.
If this were not complex and strange enough, I noticed that, even with the high capacity deodorizer, the hot water still smelled of "well aged eggs". I was not sure who to call – the well contractor who installed the water treatment system, the HVAC contractor who installed the geothermal preheater and the electric hot water tank, or the plumber who hooked everything up ? I started with the well contractor. They said the problem was with the hot water tank. The plumber agreed. The HVAC contractor agreed to. So, who do you think had to fix the problem ? The home owner !
All three contractors said the same thing, "it’s the anode in the hot water heater – we don’t know why but that’s the problem". All three contractors gave the same solution, "just take out the anode and cut it off". So, while the anode has a good purpose, the bad water wins hands down.
Anodes are not installed to be removed even though they are meant to be replace – figure that one out. They are torqued in so tight, it is all but impossible to remove it without the hot water tank turning and busting off the in/out feeds. So, I turned off the water and released the pressure in the hot water tank. then I rotated the tank into an open area of the utility room. Lowered the 1-/16" socket and extension; attached the ratchet handle and about 3 feet of pipe and began yanking on the thing until it started to give.
The extracted anode was gross – after only 6 months ! I cut it off so all that was left was the threaded head and about 1/2" of rod. I reinserted this "spud" with some plumber’s tape and tightened it all back together. Since the in/out feeds were CPVC, I trimmed where I had cut and glued on socket fittings (my new favorite part) so i can decouple the tank without cutting and splicing the next time. I shifted the tank back into position and connected up the feeds before turning the water back on. I run all the hot water out of the tank and filled it with cold water before turning the electricity back on. – this let me know I was starting with a clean slate. Once the water was back up to temp, i tried the shower since it was the most prevalent "offender". it was the first "refreshing" shower in months!
I may order a new anode rod that is meant to not cause the odor problem (aluminum/zinc/tin) but then again, as I am serious about the tankless system, I may just leave it and see how many years i get out of a defenseless hot water tank. <cruel intensions>


