E46Fanatics - View Single Post - Hard Water Stains
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Old 10-28-2012, 08:48 PM   #3
Registered User
Join Date: Jan 2011
Location: San Diego
Posts: 2,928
My Ride: '12 135i Dinan S2
I'm really at a loss here. I regularly clay, wash and wax my car. I use hardwax every few months and for every wash in between, I use some type of spray wax/quick detailer. My paint feels like glass. I don't get how the calcium in this water could penetrate the paint.

Past: 1999 Techno Violet Metallic M3
Present: 2012 135i DCT Dinan S2
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