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The Florida landscape consists mostly of sandy soils with a porous limestone bedrock below. As water from rain flows through the soil, it becomes mildly acidic and, in geologic time, develops passageways and cavities within the limestone. Over time, the passageways can enlarge enough that in addition to water fl owing through them, they also permit soil particles to move into the limestone. This is the beginning of a cover subsidence sinkhole and if there is something on the surface above it (like your home) it can begin to settle or sink. This is just like sand flowing through an hour glass into the void below.

This is the most common type of sinkhole in Florida. Given the proper diagnosis and a well designed stabilization plan, this problem can be successfully remedied. This is no easy task... You need a specialist. For cover subsidence sinkholes the most common solution is Grouting.