Thanks Scruffy (love the name):
They use lots and lots of road salt here, but not in our sub of 6 lakes with storm drains going into them. I did not know the sand they use had any choloride/salt in it until now. We have very high saliinty in our lake. We have a drain from out of the sub coming in our lake.
I appreciate the info, this stuff looked like windshield washer fluid.
