Anyone use FLASH CAR Wash

[G.T.Subie]

Flash Car Wash (http://www.freshliving.com/flashcarwash/filter_tec.htm)

I have hard water problems and now that the weather is coming back around I remembered I need a fix for.
Any other ideas out there...

[JaredPointer]

Looks a lot like the Mr. Clean set up from a couple years ago. Which, honestly, I had pretty decent luck with. I don`t use it now, I think it was just too cumbersome/time consuming to use all the time.