[folivier]

Hmmm, thinking back about the water dump I installed on my '98 I first tried it connected to the check valve but the vibrations were bad enough so that the float keep bouncing and leaking. So I added a foot or 2 of plastic tubing and mounted it on the frame of the radiator where it worked much better. Didn't even consider the temperature delta of adding the tubing. But then again I try to stay out of freezing weather....Merry Christmas!