In one embodiment, a sand boil filter apparatus has a filter cone including an inner cone mesh and an outer cone mesh, the inner cone mesh having a finer mesh than the outer cone mesh. A filter tube extends through the hollow interior of the filter cone. The filter tube includes a lower portion disposed below the open apex. The filter tube includes an upper portion disposed above the open base. The upper portion has a plurality of sets of exit openings which are spaced along a length of the upper portion to provide different possible exit heights for the plurality of sets of exit openings, each set including one or more exit openings disposed at an exit height of the filter tube. An exit height adjustment tool blocks all of the exit openings disposed below a set of unblocked exit openings selected to provide a corresponding exit height.

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