by Rich Harris
I have a flagstone patio that is five years old. It was installed by the landscaper who did the rest of our yard, supposedly with 35 years of experience. He never fit the stones together properly, so I have some joints that are nearly non-existent and others that are several inches. The original screenings material washed out. He then tried polymer sand which broke up in the larger joints. He then tried mortar, but installed it so thin that it has now disintegrated. What sort of material would be best for the joints? I can't afford to tear the whole thing out and start over.
I'm not sure if the pictures got loded properly.