WAC 246-359-740. Drain connector to factory assembled structures (FAS)

(1) A FAS containing plumbing fixtures must be connected to the drain inlet by a drain connector: (a) Approved by the department of health; (b) Consisting of pipe not less than Schedule 40 with appropriate fittings and connectors; and (c) Not less in size than the FAS outlet. (2) The fitting connected to the drain inlet must be a directional fitting to discharge the flow into the drain inlet. (3) A drain connector must be: (a) Installed and maintained with a grade not less than one-fourth inch per foot; (b) Gas-tight and no longer than necessary to make the direct connection between the mobile home outlet and drain inlet at the site. (4) Each drain inlet must be maintained gas-tight when not in use.