Cracks

Here you go, crack is located in the pink area of the diagram, originally with smaller sister crack on the opposite side of the pool that was not leaking. Both were repaired by the method that I previously mentioned, but now I see the one in the pink area appears to be beginning to form again. Is not leaking yet as far as I can tell with dye and a bucket test.
 

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Here you go, crack is located in the pink area of the diagram, originally with smaller sister crack on the opposite side of the pool that was not leaking. Both were repaired by the method that I previously mentioned, but now I see the one in the pink area appears to be beginning to form again. Is not leaking yet as far as I can tell with dye and a bucket test.
I kinda meant an actual picture showing any slopes etc. some way to guess at what might be causing settling other than just backfill when it was built.
 
It does along that whole side of the pool, but keep in mind there is an in-ground stem wall holding the Lanai cage in place, plus the small retaining wall that you see where the stones are which is about 5 feet wide filled with stones.
 

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It does along that whole side of the pool, but keep in mind there is an in-ground stem wall holding the Lanai cage in place, plus the small retaining wall that you see where the stones are which is about 5 feet wide filled with stones.
It’s not sloping all that much. I dunno but it seems like an odd place for a crack to form.
 
I can either do a $2,000 job, or a $10,000 job of soil stabilization, either deep injection around the trouble area, pink area or deep injection around the whole pool, since the only real trouble area at this point is in the pink area. I don't think I can go wrong at this point by doing the cheaper job the $2,000 and stabilize the trouble area.
 
But I find that kind of strange as well because if it was the spa you would think the crack would be right after the spa, either way, I still think stabilization in that area is the way to go to prevent future cracks.
 
The crack is where the red mark is in the diagram encompassed by the pink area
Yea, I can’t really provide any more useful info. But the fact that a crack reappeared is a sure sign of the ground moving.

The only extra thing I can say is that a crack in the finish can allow water into the gunite shell slowly over time and deteriorate it. I don’t think there’s any such thing as a crack that isn’t leaking. I suspect it’s just leaking slow enough to not be measureable…yet. And that leaking moisture will cause more ground movement in the future.