Well I picked up the pavers in an are about three feet wide.
It had dropped about two inches in the middle.
I jumped on it to see if it dropped more and it did not so I am thinking it had dropped some time in the past but the stone were so tight it was not until I stepped dead center on the middle one that it really dropped.
I can see now that the tension is off where there are other that dropped towards the sidewalk, that is raising with frost .
I had used locking paver sand to fill in the gap between the pavers so you cannot just take them out and simply slide them back in.
I put dry sand, best is in the tubes used for additional weight , for traction, in winter, and filled the depression but as the area is not no longer level flat and I have to tamp down the bricks I may or may not relay again before putting sealing sand in the cracks between the bricks.
I was a bit worried about jumping on it as twenty years ago I found a cement slab, maybe a little over a foot across, on the edge of the garden with a iron pipe hole in the middle.
I tried ramming a rod down the hole but it only went in about one foot, so I forgot about it.
Two weeks later where the cement had been was the center of a hole ten fee deep and eight feet wide.
This house is one of a very few that survived a tornado in the eighteen hundreds and once was the judges house and where he held court.
It has room that is now a renters bed-room but was once a horse carriage and then Model-T garage.
When it rains, water goes under it and disappers.
When it rains hard it actually washed the white two inch rocks that hide its base (no foundation sits on cement slabs on the corners, the floor is not level.) I have rocked the one area three times already .
I am hoping that that wash is not connected to the dropping pavers on the opposite side as that would mean there is an under ground pathway.
