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Posted for Jim Sower <canarder@starband.net>:
I thought that in a closed system there was no head pressure. If the
system
is
pressurized, there is system pressure, but still no head pressure. The
closed
loop
cancels everything out.
Just wonderin' .... Jim S.
Nope. There is still differential pressure in a closed system with
restrictions in it. The pump sees the restrictions as head pressure.
Tracy
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