Just a fyi. "Hard Water" is Calcium and Magnesium in water. It accumulates in tight spots like coffee machines, irons etc and on air tried surfaces. When it comes to washing your bike/car the calk is the last thing I worry about. More important is when, what you use and how you clean and dry the bike, like a brush, sponge and leather. I washed hundreds of cars and bikes in my car mechanic apprenticeship in Germany in the 90's. The most important I learned: Never ever clean/dry your car/bike or window in direct sun light, ever! The paint/widow etc must be cool to the touch, always! Cover the ignition system with a plastic bag before you begin. Use lots and lots of water while the sponge is in contact with the paint/chrome. Don't ever push to hard on the paint/chrome and rinse the sponge constantly. Compressed air is very handy to dry your bike and all electrical connectors. Leather works too but make sure its wet completely and the dirt is completely removed from the bike. Oh and keep great distance between the power washer nozzle and your bike. Electrical connectors can handle water (Rain for example) but if you get to close you literally push water by the rubber gaskets. I personally stay away from power washers when I clean my bike. Don't use to much force pushing the sponge leather etc onto the bike. Pre soak heavy, dry dirt. IMO: Wax is a waste of money. I only Polish a vehicle once, when I sell it.