How do they regulate mains water pressure?
The message
from The Natural Philosopher contains these words:
Hedaer tanks and ball valves halfway up the hill ?
:-) :-)
I really don't know how they do it but one way would be to have in-line
pressure reducers at regular heights. If 3 - 7 bar was an acceptable
range then they would be needed every 120 feet of altitude change.
--
Roger Chapman
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