There is a smell present whenever I use the hot water. I am on a drilled well (72ft) and have Kinetico water softener and UV light. The tank is only 1 year old and if I put Javex in the tank to kill the smell , the water doesn't smell for about a week and then starts again. Immediately after I put the Javex in the tank, a blackish residue is present for the first little while. The smell is only present with the hot water, not the cold.
Jimbob
Jimbob