From the HBD Archive
From: Martin A. Lodahl <pbmoss!mal@Sun.COM>
Subject: Coolant Pump, Revisited
Date: 1990-04-16 20:46:42 GMT

(This is not my first attempt to post this. Something seems to be
eating my words! Usually, I'm the one forced to do that ...)

A few months ago there was brisk discussion on the subject of a pump
to recirculate icewater through a wort chiller. The consensus
favored a small drill-powered pump, but my family objected
strenuously to the din. Inspiration: a water recirculation pump
for an evaporative air cooler! So, for some $4 I acquired one for a
5000 CFM cooler, and tried it out on last Saturday's batch of stout.
Not an unqualified success: the flow rate of this small pump was
just not enough. The transit time through the coils was so long
that I suspect that a difference in temperature between the coolant
and the wort only existed for the first turn or so. I'd been
worried that too much flow would pop off the low-pressure hose
connections, but I could have used 5 times the flow this pump put
out. It was quiet, at least. Unfortunately, pumps designed for
larger coolers have a MUCH larger price, so it's time to hit the
salvage yards ...

DISCLAIMER: This type of pump is not designed for this type of use.
It's not grounded or electrically sealed, and is top-heavy. If it
falls over into your icebath, something horrid will happen. Not my
fault.

Now about that stout: there's about 4.5 gallons in the fermentor (I
slipped while straining the hops. It's astonishing how much of the
kitchen can be covered in one splash!), bubbling merrily away, of
some of the most wildly over-hopped stuff I've ever tasted. I just
hope it's drinkable when it's done.

= Martin A. Lodahl Pac*Bell Minicomputer Operations Support Staff =
= pacbell!pbmoss!mal -or- mal@pbmoss.Pacbell.COM 916.972.4821 =
= If it's good for ancient Druids, runnin' nekkid through the wuids, =
= Drinkin' strange fermented fluids, it's good enough for me! 8-) =


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