I beat my personal best time in the 2000sf roof and house wash catagory today..... 1.5 hours (show up to drive off)! We had some serious rain to the west of town showing up on my phone's radar and we were on the east side of town. I told my ground guy that I would throw in a 18 pack of Bud with his pay if we could beat the rain. That joker was laying out hose, setting up my ladder and filling the tank before I got out of the truck! I did have to hit the windows with a second rinse because I'm anal about streaking windows, but I never seen him move so fast in my life. The rain broke up before it ever got to us but I still kept my end of the bargain.
This time of year here in FL we have to become rooftop weathermen and try to figure out how long until the rain comes and how intense it will be with just our cell phones and clouds to look at.