Solutions
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palayman's post in Interface to Google home "offline" was marked as the answerAnswer provided in another thread. It worked for me.
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palayman's post in Is Yolink node server cloud based? was marked as the answerYea, it is cloud based.
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palayman's post in Expansion tank forces water through leak after system water is off was marked as the answerUse another Yolink valve to dump the pressure tank into a convenient location after you turn off the water to the house. I use one to dump water from the pool if rain over fills it.