Does anyone have any advice on where to get a good aux water pump for a
1980 300SD?  This is the little electric booster pump that sits next to
the climate control servo.

I've been through 3 of them from Adsit Company and they are pure crap.
Fortunately, they kept replacing them under warranty, but even then, I
think all 3 only lasted less than a year.  They all had small slow
leaks around the shaft right out of the box.  The last one, I decided
to just live with it.  Then driving along one fine day I heard the most
horribly squealing from under the hood, like the squirrels were all
fighting with each other.  Turns out the bearing on the shaft had
completely failed and it was just spinning around and flopping all
over.

The Adsit ones were no name cheapo ones for about $90.  I see Bosch
makes one two, which I assume would be better, but thought I'd ask if
anyone has any other info.

Thanks
Chet