Product Suggestions to Avoid Water Spots

[Desertnate]

Are these waterless washes that specify QD dilution ratios, or are you just experimenting to find a ratio that works as a QD? (if the latter, what ratios are you using?)

Thanks.

The one I use, CarPro ECH2O, lists out ratios for waterless, rinseless, and QD on the label. If I remember correctly QD is 1:20. I think a couple other waterless washes do the same.