Surface Cleaner faster than Wand???

For you guys in the parking deck cleaning business. let me run this by you tell me what you think....

I got a call to help wash a new construction parking deck for a Local PW company ...his equipment consisted of three portable cold water machines with a lot of water hose, no surface cleaners ....just wands and three guys.

The site furnished one of them vacuum sweeper machines that was used to help get the water out.
Waste Water went to cement detention pond that's under the building to be pumped out at later time.

They was appox 67,ooo sq sf on one level
his three guys started on one end and I started on the other and we was going to work our way out.

With My equipment ( 11 gal min - 22,000psi) along with my Steel eagle vacuum system (vacu-boom)that I used when the Vacuum sweeper got behind.
He wanted me to use a wand as well to push the dirt out.

I was able to clean approx 34,ooo sq ft in 12 hrs (2 -6 hr days)
His 3 guys cleaned appox 33,ooo sq ft in about the same amount of hrs
(Labourers probably paid by the hour)

So my question is how can how can using a Reg. surface cleaner be faster when you have to go behind it a push so much dirt out?
It did seem easier to go over it one time and you did not have to rinse behind you!
This was my first one so feel free to voice your opinion.
 
We averaged 4000 to 4500 sq ft an hour on this parking garage, using
8gpm @ 3200 psi hooked to a 600 gal tank with a big guy surface cleaner and a guy rinsing.
 

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Did you go back and look at the quality of the work?

There will probably be wand marks or other quality differences. As they clean, they are also rinsing, sort-of so 3 against one would favor them but as for quality, you should have them beat except for the rinsing part.

I agree that you should be going at least 4000 to 5000 sq.ft. per hour minimum in open areas like that as long as you have good supply and you don't run out of water.

I would go back and look at the quality differences between your work and their work. You should be able to see wand marks unless it was not that dirty and is smooth concrete and you were cleaning and they were just doing a heavy pressure rinse.

You will not know for sure until you go back and see. I think we all would like to see.
 
Fatigue alone left those guys not being able to go on the next job.
 
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