Hello - It might be a long shot but wish to inquire of you just the same. Our home is in a rural setting in the Manning/Buxton/Banks area of Oregon. The home is ~10 years old and has copper pipes throughout. We struggle with a sulfur smell in our hot water inside the home. Professional plumbers diagnosed it as mineral build-up in the water heater so replaced it but to no positive effect. I understand there is more to the home's water-management system besides the water heater, such as a pressurization system in the crawl space which might be contributing to the issue... unsure. We continue to try to root-cause the issue so we can address it. My question to you: is it common / possible that the sulfur smell originates in the water itself under ground, such that anything we do to the home-based systems won't necessarily successfully address it? Any suggestions you might offer? It's difficult to root-cause the issue in part because every professional we have come amazingly concludes that we need to hire them to replace whatever it is that they sell (plumbers, re-pipe specialists, etc.) Shocker... Thank you in advance for any guidance you can offer. Kevin Moe