Just to rule out the possibility that the canning jar may have had any 
involvement, try putting tap water in the same container used for the distilled 
and the CS.  If tap water and distilled water have different results when using 
identical containers then we have something very puzzling that needs 
investigation.<a href="https://overview.mail.yahoo.com?.src=iOS";><br/><br/>Sent 
from Yahoo Mail for iPad</a>