Building is all concrete, and about 3 stories tall.  My partner has cleaned buildings like this before, but i haven't.  Right now we do everything with an x-jet, and have a 4gpm 4200 psi washer (Honda gx390). Any tips or recommendations on cleaning a building like this? 

I haven't had time to do a ton of research on cleaning concrete buildings, but am i correct in thinking that we should apply something like a 50/50 mix of 12.5% and water, with a little roof snot?  Stronger?  Weaker?  Something all together different?

Are the chemicals still gong to do most of the work, or will it require a lot of high psi blasting on it?

Also, normally this building is cleaned with a lift, but i have been briefly reading about poles like the nlite unger.  Would a pole like that eliminate the need for a lift on a 3 story building like this, or will the lift be more or less required?

Thanks for any advice!

Edit:  Sorry about the sideways pics... couldn't figure out how to rotate them after submitting.

 

-- Edited by Jason Watkins on Monday 23rd of January 2017 02:12:45 AM

Jason

thats a pretty easy softwash and can be done with a 3% mix. I know you are coming to Florida and not sure if it can wait, but you can discuss is in person with some of us if you like.