Earthquakes could disrupt water pipes, but at that point you’d probably have bigger problems… Those filters in theory should protect you from a biological attack, but not necessarily chemical/nuclear. They’re designed so you can drink from puddles without getting infected with who knows what.
I just got a filter that people who go hiking for days use. That should handle most cases where you don’t have access to trusted clean water
Earthquakes could disrupt water pipes, but at that point you’d probably have bigger problems… Those filters in theory should protect you from a biological attack, but not necessarily chemical/nuclear. They’re designed so you can drink from puddles without getting infected with who knows what.
I just got a filter that people who go hiking for days use. That should handle most cases where you don’t have access to trusted clean water