29+ Cleaning Flagstone Images. Using stone cleaner for your flagstones. Well, i want to avoid this if i can.
Here are some of the methods to remove i have a flagstone walkway which is in heavy shade.
Put 1 tablespoon of dish liquid in a bucket with a gallon of water. Put 1 tablespoon of dish liquid in a bucket with a gallon of water. Prevent this problem by cleaning your flagstone patio at least twice. Wring the mop until it doesn't drip.