I'm pretty sure the LORD has His ways of sustaining and providing for His own. What if the blood suddenly turns to water once a believer scoops some in their hands, or collects some in a bucket or bottle? The Trib saints can always pray and ask God to turn the blood to water before they consume it. But if He lets them die, then that might be better for them than living through the Tribulation and getting very, very, very old during the Millennium.I wonder if the bowl judgements are poured out just days before our Lord Jesus’s return. If all the water in the world is turned to blood, then the max remaining time for people is three or four days.