[bforbis]

Hey James,
have not tried inside residential and do not think I would. Too much flow/pressure and potential to cause damage.
I've done a couple of lonestar steak house restaurants where they had hardwood floors on top of concrete floors and had to be careful not to get water under the planking. It work out great. You talk about a huge difference!!! I don't know how many years of peanut salt, grease ect was on that floor but when I finished it actually looked like concrete. The manager and waitstaff were speechless at how much brighter it was in the restaurant.

I forgot to take the after photos to post with the ones above, DUH it was a long night-day-night thing I went by today to do a quality check with management and they want it as part of the regular cleaning schedule. I have 5 of this owners' restaurants. I dont; know what day it is anymore!!!!