815 KAR 20:077. Storage and installation of aluminum soil, waste vent and storm water piping and fittings.

      RELATES TO: KRS Chapter 318

      STATUTORY AUTHORITY: KRS Chapter 13A, 318.130

      NECESSITY, FUNCTION, AND CONFORMITY: The office is directed by KRS 318.130 through the State Plumbing Code Committee to adopt and put into effect a State Plumbing Code. This administrative regulation relates to the storage, handling and installation of aluminum soil, waste, vent and storm drain pipe and fittings, and identifies the manufacturer's specification number of the material accepted in those installations. This amendment is necessary to comply with KRS Chapter 13A drafting rules.

      Section 1. Aluminum pipe and fittings shall be produced and labeled as to American Society of Sanitary Engineers (ASSE) Specification #1045 and copies of this specification may be obtained by writing the American Society of Sanitary Engineers, P.O. Box 40362 , Bay Village, Ohio 41140.

      Section 2. General. (1) The installation of aluminum drain, waste, and vent (DWV) with end cap components for both sanitary and storm use shall be installed in compliance with this administrative regulation.

      (2) Handling instructions, installation instructions, special environmental conditions, workmanship, and assembly for aluminum drain, waste and vent (DWV) systems shall be followed by the installer.

      Section 3. Shipping, Storage and Handling. (1) Aluminum pipe shall be shipped and stored on a flat, clean surface, free of nails, rocks, or other sharp objects which could potentially damage the pipe or coating (if supplied) or both. Pipe shall not be stacked more than ten (10) pieces high, unless strapped in bundles as received from the supplier and one (1) pipe shall not rest unwrapped within another. Pipe shall be supported on flat supports having a bearing face approximately four (4) inches wide, at intervals not greater than five (5) feet and at each end of the pipe.

      (2) Mechanical handling of pipe and accessories shall not be performed, unless they have been suitably crated. Manual handling shall be used on all sizes of pipe.

      (3) Pipe and joint components shall be stored away from extreme heat and the danger of mechanical damage.

      (4) Strict attention shall be paid to all safety regulations for handling and storage of pipe, fittings and accessories.

      Section 4. Installation. (1) Pipe, fittings, and joint components shall be examined for damage before starting an installation. Bent, crushed, severely dented, or damaged materials shall not be used.

      (2) Pipe shall be cut square and all ragged or burred edges, inside and outside shall be removed. The alcladding or the internal lining of the pipe shall not be disturbed. Pipe shall be cut with a circular saw equipped with a mitre box or guide to ensure a square cut. A twelve (12) or fourteen (14) inch diameter, semi or high speed steel, fine toothed, hollow ground, metal cutting blade shall be used. A solid or liquid blade lubricant shall be used.

      (3) Assembly procedure.

      (a) The Alcan Adapter Ring (complete with mastic seal) shall be slipped over the cut end of the Alcan Aluminum DWV Pipe.

      (b) The hubless clamp shall be slipped over the aluminum pipe and out of the way until required.

      (c) The aluminum DWV pipe with adapter ring shall be inserted into the double-ribbed gasket.

      (d) The cast iron fitting shall be inserted into the other end of the double-ribbed hubless gasket.

      (e) The hubless clamp shall be slid over the gasket and the screws shall be torqued alternately to sixty (60) in./lb, completing the joint procedure.

      (4) Open clearance. The opening through walls, partitions, and floors shall be sufficient in size to allow free passage of pipe, fittings, and joint components. The openings shall be smooth and free of harmful surfaces and projections.

      (5) Sealed. If openings through walls, partitions, and floors require sealing, they shall be sealed with mortar, concrete, or other sealants compatible with aluminum. Aluminum drain, waste and vent (DWV) pipe shall not be in contact with reinforcing steel embedded in concrete. If required by code or deemed necessary by the installing plumber, the pipe shall be wrapped in suitable plastic or rubber tape over the area passing through the wall or floor, or coated with good quality bituminous paint.

      NOTE: If a sealant containing magnesium oxychloride is used, the pipe shall be provided with additional protection.

      (6) Service penetration firestops. Service penetration firestop assemblies shall be in accordance with local fire or building codes.

      Section 5. Joints. (1) Coupled. Joints shall be made in accordance with the manufacturer's instructions, including end cap protection and other component details.

      (2) Transition to other piping. Adapter fittings are available for joining aluminum drain, waste and vent (DWV) pipe to other types of pipe, and only adapter fittings approved for the specific transition shall be used.

      Section 6. Supports. (1) Hangers. If a hanger or support for aluminum drain, waste and vent (DWV) pipe is of a metal other than aluminum and if chlorides or other electrolytes are present or likely to be present, the hanger shall be suitably separated and electrically isolated from the pipe. Supports and hangers shall have a broad support base and shall be free of burrs and rough edges to prevent abrasion of the pipe.

      (2) Spacing. Horizontal pipe shall be supported at intervals not greater than ten (10) feet, at all joints, at all branch ends, and at all points where there is a change in direction. Trap arms shall be supported as close to the trap as possible. Vertical pipe shall be supported at intervals not greater than ten (10) feet.

      Section 7. Buried Pipe. Only aluminum drain, waste and vent (DWV) pipe having a factory-applied external coating and marked "UGRD" shall be used underground. Joints shall be protected from corrosion by applying a tape wrap or shrink sleeve. The pipe shall be protected from mechanical damage by suitable structural shielding, if deemed necessary.

      Section 8. Drain, Waste and Vent Systems Subject to Freezing. In servicing an aluminum drain, waste and vent (DWV) system to protect trap and fixtures from freezing, a glycol-water solution made up of sixty (60) percent by mass of glycol mixed in water shall be used. Alcohol antifreeze shall not be used. (14 Ky.R. 1178; eff. 1-4-88; Am. 17 Ky.R. 2892; 5-3-91; 19 Ky.R. 1008; 1393; eff. 12-8-92; TAm eff. 8-9-2007.)