Obviously they preach clean surface to apply the spray too. To try to squeeze out there longevity claims. You could start with a clean surface spray 3:1 to start and then maint every few weeks with 7:1
This all boils down to having a concentrate like Hydro2 unsure if Hydro blue will ever be a concentrate because cuts much profit out for the companies and it allows chances of poor reviews for using poor quality water and or too strong of a dilution etc. too many variables when you control the dilution.
It`s so easy to do the spray and rinse the hardest thing is using the low amount they tell you will cover a vehicle. Second after that is having a good place shade preferred to apply and get rinsed before possible streaking can happen
Stuff sure is fun to use but it does take away some hand on car time that some just love. Me I rather just be Able to juice this on and be done. I`ve been fooling with different ratios and application methods just for fun.
Sent from my iPhone using Tapatalk