Well, if we take the average amount of water loss per message at 0.3 mL, and the average water consumption (low end) at 2.6 L per day per person, we're looking at 8,666 messages a day.

You'd have to send out 3.163 million messages in a year to equate to the amount of water someone needs for a year.

You'd have to send out approximately 250 million messages before your looking at the low end of the amount of water you'd need to keep someone alive for their entire lives.