Drilled a new deep well last year. Water was great for the first 2 months, then came the H2S... smell was barely noticible at first, then got progressivly worse. Took the plumbers advise and shocked the well with about 2 gallons of ultra bleach and let it sit over night in all the pipes and well. Flushed the well for about half a day and everything was good (except for the slight odor or the bleach in the water). Well that lasted about 2 weeks and the smell came back about 10x as bad! Its to the point now where if someone showers the entire house stinks like a rotton egg. Even if the dishwasher is going. Anyway I find myself dumping a gallon of bleach in the well per month and I end up running the pump about 5 times as much as it should be ran due to the fact that I need to flush the well after shocking. Plus I have to let sit for so long etc. a real inconvience...
Did the rod removal already. The smell is the same for hot/cold water.
Believe me when I say ANY help is greatly appreciated.
My house is the worst. I have high iron (around 7 also), calcium hard water around 80 grains hard and sulfur.
I knew this before I built so I budgeted for it. $5,000 later this is what I have.
1) Water comes into the house from the ground. First thing that happens is bleach is injected into the line
2) Bleached water goes through an 120 gallon retention tank. The mixed water helps the chemical reaction take hold.
3) Water filters through an iron removal tank. Has sand in it and recycles 2x a week.
4) Water filters through a charcoal media tank to remove the bleach. Recycles 2x a week
5) Water goes through a salt softener to soften the water and remove the calcium hardness. Recycles by volume.
I drink the water out of the tap. Have the kids drink bottled water to keep the sodium level down.
I know my system works. How the filters work is a mystery but you need to treat all the conditions or the water will be bad.
Remember another thing. When the water table rises and falls with the amount of water in the ground the sulfur smell will rise and fall accordingly. I was always told to make your system work for the 85% of the time the water is constant. If not you'd adjust the system weekly.
Another idea I've heard of is people putting chlorine tablets down their well casing. You know the type you put in a pool. Kinda look like a salt tablet. That helps with the smell but then drinking the water is an issue.