Re: Dirty water
Posted by More on December 17, 2001 at 22:39:42:
In response to Re: Dirty water
Black, foul smelling greasy oily residue is the result of bacterial decay, waste digestion, and stagnation normally associated with septic tank, or broken sewer line stagnation, and results from a cross connection somewhere nearby. Black very fine sandy gritty (but not mud) residue without a foul odor and greasy oily consistency could be iron pyrite, iron oxide, black sand, caused by heavy deposits laying in the City water supply line close to the end of a 12 inch service where a much smaller return line or fire hydrant (which is not regularly flushed and maintained) is placed, and is close to where your house supply is connected. Take a clean sample of it to your City Water purveyor or Health Department and ask for written Laboratory Analysis to ensure the water is not unsanitary or unhealthful.

: I have copper lines connected to city water. I am getting a lot of black residue in aerators and toilet bowls. Redisue is not rust, it is almost like mud. What could this be?

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