On Tue, 6 Nov 2012 15:57:52 +0000 (UTC), "Danny D."
wrote:

I'm reading all I can on it from the datasheets right now since
it's a $755 part with a $55 repair kit - but, as you know,
repairing (fixing) takes more effort than simple replacement.

What?! I paid ~$65.00 at HD for a brand new WATTS brand PRV after
the old one had frozen and cracked six years ago.. About a 1 hour
job.

For the cost they want, you should get a reach-around.

Look around here and get another price.

http://www.watts.com/backflowprevention

Watts is a quality brand in my experience.

If the valve is cracked, a repair kit is useless.