I've had my e90 now for about 6 months in that time the sprinklers have constantly left hard water on the paint. I have attempted to wash and use meguiar's scratchx constantly, but I'm exhausted with the constant maintenance. Ontop of that I have major swirl marks all over from the dealer's washes. I'm looking to get a porter cable buffer and was hoping you could set me up with a kit. Assuming, pads you would recommend using and the type of product(s) to use to remove hard water spots, swirls and seal everything back up. Thanks for you time, I look forward to hearing your recommendations.