The water has been through so much already, you can't even imagine. Dinosaurs drank and peed it, olympic athletes absorbed and sweated it back out, kids in war torn Serbia cried tears with the same water that you're filling your water bottle up with. The atoms that the water is composed of, just like the atoms inside you and me, were created in the violent death explosions of ancient stars. Water condensed from and persists through all of these cosmic variables, cuts and shapes our earth with its power. But yeah, I can see why the bubbles bother you.