Where does the water pressure in my house come from?

[aerodave]

Very informative post, DHMO. But I really just wanted to post to say that, in this context, I really like your username.

[Fish_Cheer]

@DHMO

The Chlorine residual leaving the plant is seasonally adjusted to the demand, so that at the limits of the outermost taps in our distribution, there will be sufficient disinfection to prevent bacterial growth.

This is hijacking the thread somewhat, but I wonder why North American utilities do this. In Germany, municipal water is stringently controlled but rarely chlorinated, and they seem to do just fine.

[Snnipe_70E]

@TriPolar

Large cities usually have thousands of tanks. They’re on top of the buildings, which need to use tanks to maintain water pressure above the first few floors.

The ones on top of buildings are for the buildings water system and are not a part of the city water system. This would be an apple and orange thing. I live in San Jose Ca and know of only one location where there are tanks.

[Snnipe_70E]

@ZenBeam

I’d further guess that whether tall buildings have individual water tanks or just use pumps would be independent of whether the municipal supplier has water towers or not.

Correct.