[atiffany]

It might be more efficient (and effective) for the filtering to happen closest to where the water is drank. If it happens at the treatment plant, then you end up filtering lots of water that is used to water lawns, shower, etc. Only a small percentage is used for drinking.

[saulpw]

I don't think it's good to have toxins on our lawns (where our pets roll around) or in our shower water either though?

[jboogie77]

This is correct. Pollution absorption though the shower is a thing

[RiverStone]

Agree, you also need chlorine in the water to treat the distribution system of pipes to your home. So you need to filter chlorine at point of use anyways.