[carnut]

We have a well also. We get a sulfer smell when we've used lots and lots of water. Before you pour bleach down the well, try this, If the smell is stronger out of the hot tap, this works for us. Turn off the main water supply. Pour a bottle of peroxide in a container you can siffen back into the water heater. Siffon an equal amount of fresh water back into the heater. makes sure peroxide makes it into the heater. Let stand for 1 hour min. The plumbing store told us about this, works great gets rid of smell. Smell is mostly heater core rod reating with water.