(A) All building plans must be submitted to the town and approved, prior to the issuance of water service. The building plans must show:
(1) Water service type, size and location;
(2) Meter size and location;
(3) Backflow prevention assembly size, type and location;
(4) Fire sprinkling system(s) service line, size and type of backflow prevention assembly if applicable; and
(5) Lawn irrigation system(s) pressure vacuum breaker size, type and location.
(B) Backflow prevention assemblies are to be installed in an accessible location to facilitate maintenance, testing and repair. Drawings must show various installations.
(C) All backflow prevention assemblies shall be installed immediately downstream of the water meter and before all other points of use.
(D) Before installing a backflow prevention assembly, pipelines should be thoroughly flushed to remove foreign material.
(E) In no case will it be permissible to have connections or tees between the meter and service line backflow prevention assembly.
(F) Backflow prevention valves are not to be used as the inlet or outlet valve of the water meter. Test cocks are not to be used as supply connections.
(G) In order to ensure that backflow prevention assemblies continue to operate satisfactorily, it will be necessary that they be tested at the time of installation and on an annual schedule thereafter. Such tests will be conducted in accordance with ASSE and/or ABPA performance standards and field test procedures as directed by the state’s Department of Public Health and Environment. (Not applied to residential dual check installations.)
(H) The town will require inspections of all containment installations.
(I) All costs for design, installation, maintenance, repair and testing are to be borne by the customer.
(J) All laws and regulations apply regardless of the age of the facility.
(K) All fire-sprinkling lines shall have a minimum protection of an approved double check valve for containment of the system.
(1) All glycol (ethylene or propylene) or antifreeze systems shall have an approved reduced pressure zone assembly for containment.
(2) Dry fire systems shall have an approved double check valve installed upstream of the air pressure valve.
(3) Single-family residence with a fire sprinkler system and domestic water combined shall have a double check valve when no chemicals are used.
(4) All fire sprinkler systems shall conform to the following sections of the National Fire Protection Association Standards 13 and 25.
(Prior Code, § 135.5.4) (Ord. 398, passed 6-6-1996; Ord. 577, passed 11-6-2014; Ord. 586, passed 12-3-2015) Penalty, see § 52.999