Attach your garden hose to an outdoor spigot, drop it into the well, and turn on the water. Let it run for at least 15 minutes. This recirculates the bleach through the entire system—pipes, tank, and that weird guest bathroom nobody uses. Your goal is to give the whole house a colonic. The water will start to smell like a motel pool.
How to Chlorinate a Well (with Pictures) - wikiHow
Now, go inside and open every faucet—hot and cold—one by one. Let them run until you smell bleach at each tap. This is the “chemical victory lap.” Don’t forget the outdoor spigots, the washing machine, and that hose bib where your dog drinks. Your dog will get cranky, but your dog also licks unspeakable things, so take a number, Fido.