"Do you guys in the US get recycled sewage water on tap? We do here in the UK. All the shit is rinsed out then they stick chemicals in it to make it nice again."

Let's hope not.

We have always had enough country to supply water for everyone, but the mass illegal migration from Mexico is stetching the Colorado and Rio Grande to the point that we must choose between growing crops (which feed the people) and supplying the people with drinking water. The Southwest US is mostly desert.

As to bottled water, the plastic bottles often have the mould-release compound stuck to the plastic providing more "pollution" than tap water has. Save your money unless you live an area that has proven to have poor quality water.