| http://www.w3.org/ns/prov#value | - The stopping of leaks in drains, water, soil, waste or vent piping, provided, however, that if any concealed trap, drain pipe, water, soil, waste or vent pipe becomes defective and it becomes necessary to remove and replace the same with new material, such work shall be considered as new work and a permit shall be obtained and inspection made as provided in this Chapter.
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