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How to chlorinate (shock) a private deep well

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#1 Gonefishin

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Posted October 18 2005 - 12:54 PM

I had a well test performed on my well recently. The results came back positive for Chloriform sp? bacteria. I did some research and discovered a couple of things.
#1 This does not indicate that you have neccessarily have sewage infiltration in your well water. The bacteria does naturally occur in the dirt.
#2 I have been told a gallon of bleach will take care of this problem by shocking the well and killing the bacteria.
How do I do this? Do I take the head off of the pipe where the well is and dump the bleach in there? Do I let the bleach work for a while before I use my tap water? Do I do a superflush of the system in which I water the grass or something to bleed the system?
Any suggestions appreciated. As you can tell, I do not know much about this subject but would like to save on the expense of having it done commercially. I plan on having the water retested about a week after shocking as the bleach will be gone by then. Thanks.

#2 TomR

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Posted October 18 2005 - 6:57 PM

I had to do it when I had a new well put in. I also talked to my brother about it who use to work for wells and septic department with our County government.
Yes you dump it down the well head and then turn on each faucet in the house until you smell the chlorine. Then let it set for a while. My guess would be overnight. It takes a while before the chlorine goes through the system. My recollection was I had to do my test again because I had remanents of the chlorine in the water. I had a real good well so I then just ran two hoses for a good while to much sure I had the chlorine gone.
I was told sometimes the contaminate is just in the faucet they get the water from. I cleaned out the inside of my faucet good where they were going to take the water to do the test.