Waterman2014

There are "standard solutions" out there that can be used to verify test methods. Maybe the health department should look to try them? It would be a start in the right direction.

That health official should verify her results. Is she closing a lot of pools lately? If so, does it seem unusual for her? Does she have a backup system? Sounds like you are spending a lot of money trying to fix something that doesn't need fixing. Could it help to have a conversation with the health department along these lines? Maybe ask them to use a Taylor kit to cross-check?