This concrete slab was poured in our backyard this winter. This month I noticed that one particular section has divots in it. These are specifically only on one section of the concrete. Notably, that section of has always been darker than the rest since it was initially poured. Concrete sub just kept telling me to wait and the colors would balance out eventually. But it seems seems odd to me that it is Also the area that has these divots. Suggestions, thoughts??
(Ignore the bluePickleball tape !)