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Posted by Jack, CVMS on November 17, 2003 at 20:45:42:
In Reply to: location of expansion tank posted by Ray on November 17, 2003 at 14:12:34:
Are you installing your circulating pump on the
supply or return side? If on the supply side,
Grundfos (and others, I'm sure) recommend putting
the expansion tank on the supply side as well,
just upstream of the pump, in order to insure
the pump suction side gets full system pressure.
I quit putting the circ pump on the return side
many years ago, so won't put the expansion tank
there either.