We bought our current home in 2009. It has a bluestone patio that is probably at least 20 years old and looks dirty. I sweep, I hose it off, but that just doesn't seem to work.
I want to avoid using a power washer, as the grouting is old, and sometimes comes up when I use the hose. And I don't want to kill any of the plants surrounding the patio.
How to clean bluestone patio without killing plants?
Most info shows to sweep, use leaf blower and blow all debris off then hose off and scrub using 1 part bleach to 10 parts water and then make sure you use sealer to keep it looking good