What is this kind of pool deck called - no coping

The tile slabs are you coping.

It is cantilevered if it is suspended above the bond beam and does not touch the pool structure.


This crack is concerning as it indicates something is shifting.

Is that top a skimmer or an autofill?

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that is a skimmer. I believe that was caused by a leak. You cant really tell from this picture but right by the floater the concreted deck is separated by about 1/2" from the pool. There was a leak near the small stone steps behind the fountain and the previous owners never did anything about it and the dirt under the concrete got so saturated it began to sink. It that sinking/twisting over there is probably what caused that crack.
 
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