The length of use for the rinse depends on the tds content of your local water. The only change to the mcad directions is to keep a bucket of clean water nearby so you can rinse your mitt between washing car sections. Soap; light filtered rinse.

This product does what it says. My son swears by it. Uses it on his john deere mowers, our gmc trucks, etc.

Mcad is a car drying system to replace hand drying. You still need to wash your car with a wash mitt or sponge and bucket. The mists are just like the car wash including the mist/liquid.

All i know is it sure beats having to make the bi-monthly trip to the car wash. It's all about greed an demand.

O-ring seals all start cracking and leaking. The soap container leaks badly. The gun slowly starts leaking more and more until you end up getting more water on yourself than your vehicle.