§ 150-15. Joints and connections.

All joints and connections shall be made gastight and watertight. Cast-iron pipe joints shall be firm-packed with oakum or hemp and filled with molten lead not less than one-inch deep. Lead shall be run in one pouring and caulked tight. No paint, varnish or other coatings shall be permitted on the jointing material until after the joint has been tested and approved. All joints in vitrified clay pipe or between such pipe and metals shall be made with approved hot-poured jointing material, premolded bituminous jointing material, rubber or plastic material or as approved by the Plumbing Inspector. Inspection and test results must be filed in a report before approval is granted. Variations of these requirements may be made in special circumstances if approved by the City Plumbing Inspector in writing.