(a) Materials. Asbestos cement pressure pipe shall be Class 150 and shall conform to American Water Works Standard Specifications, W.W.W.A. C-40053 T. All couplings shall conform to the same standards.
Pipe assembly shall be equal to “Ring-Tite” as manufactured by Johns-Manville. Certification of manufacturer’s tests, including hydrostatic, flexure and three-edge bearing tests shall be furnished to the owner. Each pipe shall carry the Underwriters’ Laboratory label of approval.
(b) Construction. The manufacturer shall furnish, without charge, the services of an installation instructor who is employed by the manufacturer as a competent and experienced construction man for this type of water main and who will assist the contractor in employing the proper methods for this type of construction.
The contractor shall comply with the manufacturer’s specifications in the construction of the asbestos cement pipe line except that the bedding and backfilling of pipe shall be made in accordance with the enclosed specifications for cast-iron pipe.
The enclosed specifications for cast-iron pipe shall apply to this type of material and construction, except as noted above.
(Ord. 352. Passed 10-22-62.)