Cleanworks
Moderator
I have 2 bldg's that ask me to clean balconies. They don't want power washing because of over spray. I use an old ninja with a 1200 psi pump and gekko tool. $150 per balcony, take about 1/2 hour
It's a vinyl deck, I am a little leary of trying acid on it but will keep it in mind for the next one.Nice clean.....high pressure porty is a life saver some times especially for this kind of work. A little strong acidic grout brightener and agitation would remove those light rust stains.