[PeterPrinciple]

a damaged air valve that may have let manure pass into the supply.

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how would a properly designed system even allow that possibility?

[xoxox]

You screen-name offers a clue.

[hoosierham]

Lack of failure analysis.
“What happens if this part fails?”

[verum ago]

a damaged air valve that may have let manure pass into the supply.

how would a properly designed system even allow that possibility?




Definitely scratching my head to the point of hair loss on that one. Would be interested in some followup / clarification.

[Reverend Wright]

In the Walkerton case, heavy rains flooded the reservoirs with manure, which they weren’t testing properly or chlorinating properly.

https://en.wikipedia.org/wiki/Walkerton_E._coli_outbreak