Hi Nathan,
I am of the opinion that the booster pump should be on the output side of the main circulator, since when the booster pump is disabled it will represent a resistance to flow and you want that restriction and any resulting pressure losses to be on the output side of the main pump rather than the suction side.
Just my .02.

Luke Christy



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Message: 3
Date: Fri, 17 Aug 2012 15:22:10 -0800
From: Nathan Stumpff <nat...@arcticsun-llc.com>
To: "re-wrenches@lists.re-wrenches.org"
       <re-wrenches@lists.re-wrenches.org>
Subject: [RE-wrenches] Booster pump
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Thermal wrenches,

When plumbing a booster pump in series for a solar drainback system, should the booster pump go ahead of or behind the main circulator?

Cheers,
-Nathan

--
Nathan J. Stumpff - Arctic Sun, LLC
NABCEP Certified PV Installer #091209-175
NABCEP Certified Solar Heating Installer #032412-14
nat...@arcticsun-llc.com<mailto:nat...@arcticsun-llc.com>
Office: 907/457-1297
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