Drinking Water Tanks

Rural areas and neighborhoods that have rainwater tanks really need a good filtration system ... Imagine a bird - God forbid - took a poo on a roof ...
Or a speck of dust was to land on a roof - somewhere ...
Acacia tree or neighbors to pay a portion of his teeth that grow in hot water stench ...
A puff of diesel smog come together in a greasy pool in the corner, gutters ...
Personally, I prefer to drink chemicals in our tap water walk / Seagull ****!!! But each to their own I guess ...

They do it all the time now. The tanks are called reservoirs.

so too has the lead roof
you should get something special to all chemicals before you drink water

They are in some way .. They are called reservoirs, aka. LAKES. All water is rainwater, but comunities develop cooperatives to obtain cleaner water for everyone at lower cost. A townie, if he wished, could get a rain barrel and dip him if he wanted, but the water is contaminated by more contageon airborne and chemicals, and it would not reliable.