Jeff Givens wrote:
On Mon, 31 Oct 2005 18:45:57 -0500 Jeff Wisnia
wrote:


Is what you are looking for one of those sight glass types with a
tapered inner bore and a weighted bob which rises as flow increases?


Exactly, but any other quasi-reliable device would suffice. $100 US is
cool, running 30-80 psi.

It a heat pump water loop - even 20% accuracy is sufficient.
__________________________________________________ _______________
JG... Jeff Givens


"My hovercraft is full of eels."


Those may be hard to come by these days, they seem to have been replaced
by more exotic designs, but the types with the little paddle wheels in
them might be cheap enough for you.

Have you tried the alternate energy newsgroups to see if you can find
out what they use on solar water heating systems?

Jeff

--
Jeffry Wisnia

(W1BSV + Brass Rat '57 EE)

"Truth exists; only falsehood has to be invented."