I am having my HVAC system replaced.
One the units is located in a closet with my water heater. They did something that made the pilot light go out and they had difficulty re-lighting it. Told me my ignition switch is old. They were able to get it relit and I thought all was well. I went to take a bath that evening and my hot water is brown. This morning, I asked about it and they told me it will settle down. Should I be concerned? Is there something I should do like flush out the water tank? (how?) How long should it take to "settle down"?