How to flush out the hot water heater.
Well water smells bad after rain.
As others have said have it tested asap.
I had a shallow 20 50 ft 24 well that produced wonderful water for twenty five years.
Use ozone gas in a closed tank or atmospheric tank.
If your water smells like rotten eggs first of all don t panic the rotten egg odor is caused by levels of sulfur bacteria and hydrogen sulfide gas.
Chlorinate well water to eliminate both sulfur and bacteria.
Chlorination eliminates the sulfur bacteria that cause the odor and combined with an air charger self.
However it s not normal for a properly functioning water well with a fitted cap to be impacted by a heavy rain event.
A water test will tell you a lot about what may be causing the discolored water.
I then had a deep 200 feet 6 well drilled not twenty feet from the old well and the water was stinky and full of iron from day one.
Your water may smell like sewage due to the presence of bacteria that comes from food soap or other materials sitting in your drain.
There are over 316 contaminants in drinking water across america according to the environmental protection agency.
Run the other end of the hose outside and open the valve to drain the hot water heater.
Do not turn off incoming water supply.
Often keeps odors away for 1 2 months.
This bacteria causes a heavy gas to fill the drain near the sink and when the water is turned on the gas is forced upwards and into the air around the sink making it seem like the water itself smells.
Aerate water and or inject air or oxygen.
The most prominent odors are typically found where heat and steam are present such as the tub shower dishwasher or when cooking.
That means common odors may come from tap water and a nauseating rotten egg smell may be one of them.
Install a chlorine injector system chlorinator on your wellhead for continuous injection of chlorine when the water is running.
This can leave the water with an odor bad taste and dirt in the bottom of your drinking glasses.
How to deal with that sulfur smell caused by bacteria in a fresh water well.
Connect a garden hose to the drain valve on the lower side of the water heater.
Follow aeration chlorination ozone or peroxide injection with activated carbon.
There are many causes for bad odor in your home s water.
It very well may be water is leaking into your well from the surface due to heavy rain.
Shock your well with chlorine bleach or hydrogen peroxide to get temporary relief from sulfur odors.
After 10 minutes take a sample of the water coming out of the garden hose.
To fix well water that smells bad use one of these approaches.
In your case the fact that the water was good and now is bad worries me.