We are considering buying a home and it has a pool that's about 20 years old. The pool has a structural crack that the seller is not repairing but her pool inspector has estimated repairs would be about $9500. My main question is concerning the cause of the structural crack. If we repair it, will we continue to have issues down the road with this pool because of what caused the structural crack in the first place? I know the house had a foundation repair in the past. My concern is that the ground is shifting and unstable and has caused issues (and will continue to) with both the pool and the house. Are structural cracks a recurring issue and red flag or are they fine once repaired and don't keep coming back?