So I moved into my first house this summer after 8 years of the apartment life.

As soon as I started doing washes in my own driveway (woot) I noticed I was getting water spots like crazy. Talked to the neighbors and turns out our city water in this neighborhood is pretty bad. I tried to step up my game with my wash techniques and keeping the car wet every moment I could but still no luck. Every wash is giving me crazy water spots now.

I have a really nice set up now with a wide driveway and a recently renovated garage, but this water is killing me! I'm debating just switching to waterless washing...but I'm still a fan of the 2 bucket wash with hose...especially for those really dirty cars. I'm a weekend warrior and only do a couple cars for customers a month so I can't spend a fortune on filtration systems so I'm wondering what other options I have?

These seem more affordable but will it really fix very hard water?
Clear Inline Hose Filter Canister and Accessories

Thanks!