First time posting to this forum, and hoping someone can offer some direction or insight. Home in northern Delaware. 2 story, with walk-out basement. Well water, with a water softening system, that uses salt crystals or pellets. Try to use rust-inhibiting salt when it's available, since that is a noticeable issue. Water heater replaced 1 year ago, and drained by a plumber ~ 4-5 months ago in an attempt to eliminate the odor. Septic tank pumped out 1 month ago. The issue is: @ the hot side of all faucets, there is a very strong sulfur odor. A very slight odor on the cold side of the faucets. Apparently neither plumber from the company that installed the water heater, and, that maintains the water softening system, can figure out a solution to eliminate the odor. Your thoughts on what do, look for, who else to contact, etc?