Evidence for that claim?
No. The same thing was covered quite a few pages ago, and this is the giveaway:
That is complete nonsense. Covid is spread by sticking the viruses in your mouth/nose/eyes and drinking water won't make any difference at all.
If you've got it, drink like a fish, though. The fact that people with bad kidneys are dropping like flies could mean flushing helps.
No, but anecdotal evidence suggests it's a possibility. The Covid-19 map shows by far the strongest growth in countries that are cold right now, and far slower growth in countries that are warmer and more humid.
Compare Australia's case growth compared to Italy, and Aussie had 4 cases before Italy had any.
Time will tell, but I think there's still hope.
Except for countries heading into winter... (like mine)