Thank you Ray. I had a feeling "Community Soaking" would not be a good idea. Instead of a dunk, I may think about using a watering can instead, one plant at a time.
As a retired engineer myself I know what you mean by using "weakly", but it is a familiar term for many here. I tell people constantly you don't know what it is until you measure it. I have planted aquariums and dose macros and micros by the milliliter.