Quote:
Originally Posted by Schrup
Make sure everything (faucet & hands) are disinfected before you sample & that there's no strainer screen in faucet.
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To expand on this, disinfect source of water (non frost free spigots are best, chlorine or heat will work) flush lines to get sample from well not standing water in pipes, leave sample jar closed until ready to draw, immediately close sample jar. The sample jar should have some powder in it to neutralize chlorine (sodium thiosulfate).