Nice rainy day , could either wash the floors or play around with stacking rocks .
I decided not to notch out the grid and cover it with screen . Figured if there was enough coarse subbase I wouldn’t need to worry over compaction of the gravel behind the rock walls . So I trimmed back the grid to where it’s just under the rock walls ; and began to stack stone.
Put some pea gravel behind the stones as the walls grew . Up to the top of second course on the left and within 2” or so of the top on the right .
Was able to get pretty much all save 3 stones on the top left to stay in place via gravity , no silicone or hot glue needed . Was a little shaky as to the silicone stones staying in place long term so figured a bit of glue wouldn’t hurt anything .
Maybe tomorrow night I’ll try a test fill ….