First question - do you test your incoming water as a routine and second in the event of a boil advisory would be then immediately run a test of the incoming water again?
I am of course assuming that you use straight city water and that you don't run it through an RO system or treat it in anyway.
With that in mind and if the advisory was justified we would shut-down and begin testing - however we don't use straight city water.
The alternate of course is tanker water or bottled water.
For our new greenhouse operation in Costa Rica we'll have rain catchers (they don't call it the rainy season for nothing!) and then the water is filtered and placed in holding tanks - no issues, plus deep wells that will be tested weekly.
I would never think for a moment to use contaminated water for hand washing regardless of the sanitizers , etc.
Our setup recently for a plant that could not run lines for hand sinks was to use portable clean water tank on one side and grey water on the other - washing hands wtih clean warm water and soap and then apply a drop of sanitizer foam.
All the Best,
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Without Prejudice,
Glenn Oster.
Glenn Oster Consulting, LLC -
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