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Old 10-07-2010, 09:22 AM   #34
Nomad Willy
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City: Concrete Washington State
Country: USA
Vessel Name: Willy
Vessel Model: Willard Nomad 30'
Join Date: Oct 2007
Posts: 13,907
RE: Coolant recovery

Peter,You'd think so of course but in practice a lot of the time to most of the time it dosn't suck up. It happens so very slowly that just the smallest air leak ruins the vacuum. I'm sure that must be the explanation but I think so in that I can't think of any other. Of course one could explain the origin of man (that nobody knows) or any number of can't quite explain things. If I really needed to know about the vacuum leak I could just install a vacuum gauge in the line and observe. Incidentally the vacuum leak theory is further supported by the fact that a lot of surge tanks work lower than the rad cap. I think the only dependable way to mount them is at or above the rad cap.
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