There shall be a separate plan for each building, public or private, or any addition thereto or alterations thereof, accompanied by specifications showing the location, size and kind of pipe, traps, closets, and fixtures to be used, which plans and specifications shall be filed with the Board or Bureau of Health. The said plans and specifications shall be furnished by the architect, plumber, or owner, and filed by the plumber. All applications for change in plans must be made in writing.
53 P.S. § 14792