No Prep

[sudsurfer]

Had this for 30 years

Nothing cleaned better. But it could also be a huge headache. The final straw was the taxis with large roof top ads.

https://www.youtube.com/watch?v=uLocWkswP3U

https://www.youtube.com/watch?v=03RtqH52QR8

Could you do this with just one top brush spinning opposite of the norm?

 

[washnshine]

Had this for 30 years

Nothing cleaned better. But it could also be a huge headache. The final straw was the taxis with large roof top ads.

https://www.youtube.com/watch?v=uLocWkswP3U

https://www.youtube.com/watch?v=03RtqH52QR8

That was what I had in mind when I mentioned a rear hanging brush - the first blue overhead you have on the slant unit - but I guess that won't solve the problem Teebox is having.

 

[Earl Weiss]

Could you do this with just one top brush spinning opposite of the norm?

Not sure what "do this" is meant for. Brushj needs to be reverse hanging so the arc of the drop follows the direction of car travel. Normal top brushes fall toward the entrance or away from the back end of the car.

Same issue with "reverse" wraps. The arc of the arm is moving away from the direction of travel. They may do better on fronts of cars but except for bug areas I think backs are a bigger issue.

 

[sudsurfer]

Not sure what "do this" is meant for. Brushj needs to be reverse hanging so the arc of the drop follows the direction of car travel. Normal top brushes fall toward the entrance or away from the back end of the car.

Same issue with "reverse" wraps. The arc of the arm is moving away from the direction of travel. They may do better on fronts of cars but except for bug areas I think backs are a bigger issue.

I was just wondering if the traditional top brush could be spun opposite and get the backs of cars better.

 

[washnshine]

I was just wondering if the traditional top brush could be spun opposite and get the backs of cars better.

No, it's not the direction of the spin, as Earl said, it is the direction of the arc of the up/down motion on the cantilever. This will follow the passing car as it moves forward through the tunnel - concentrating on the backs of vehicles.

Many manufacturers make a reverse hanging top brush - McNeil - just to mention one. You could add just that component, keep your existing top brush and then you have one that targets the front (which you already have) and one that targets the rear - which you need.

 

[Earl Weiss]

Since wraps "Chase" the back ends of cars, a small reduction in line speed can make a huge "Time on Target" difference for wraps cleaning the backs of SUV's. If the Visor is an issue and you are using neoglide on the tops, perhaps the uppermost section(s) can be swapped out for cloth to taret the visor with more cleaning power.