Anyone on here use a water filter when car washing?
I live in a very hard water area, so drying the car straight after washing is an absolute must, or water spots form easily. Was thinking of getting hold of something like this: http://www.raceglaze.co.uk/400-litre-0ppm-car-washing-filter/
Apparently works very well, so much so that you barely have to dry the car at all if it's well waxed. Quite expensive, but I hate drying the car, so anything to make that stage quicker and easier is a big bonus to me. But I'd like opinions and experiences.
I wouldn't bother with anything like that; just go over it with quick detailer once you've dried it to get rid of watermarks. Takes 5 minutes and finishes off a "quick wash" nicely.