Why does my well water smell like shite?

you tapped into the septic tank by mistake

If it occurred by no fault of your own, then look for municipal workers doing work on a main water line. Here in our part of Gods country, our inept workforce forgot to install the divider for potable/nonpotable water in the line when they laid new piping. So a 3.8 mill dollar project ruined by a thousand or so $5 pieces.

You are probably catching whiff from your drain when you run the water.

Water goes in, air wafts up.

Did this start happening suddenly? Your foot valve may need to be replaced. Our water started smelling bad and we tested it, everything came back normal except for very high alkalinity. Then one morning we woke up with no water pressure and our foot valve had worn and needed to be replaced. Now the water doesn't smell anymore.

I'm not sure what the foot valve would have to do with smelly water. It's just a check valve at the bottom of your well.

I'm not sure either, all I know is the mineral smell went away immediately after it was replaced

Sulfur in your aquifer.

It is sulfur. You've hit a point in the water table or something changed in the well that has introduced sulfur into it. In the old days they would just start using the water on a garden and such or just cap it and forget it. The well at what used to be my grandmother's place is sulfur water. That well is still there, technically, but hasn't been used in 50+ years.

Now, it is easier to deal with, though. Google "How to remove sulfur from well water". There are various ways.

quote:

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Sulfur bacteria

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FIFY.