A. All new construction within the city limits of Kettle Falls, when requesting permission to hook onto the city sewer system, will be required to install back flow devices if drainage piping serving fixtures have flood level rims located below the elevation of the next upstream manhole.

B. The owners of existing buildings within the city of Kettle Falls where they have filed a claim against the city for sewage back flow will be required to install back flow devices, at their own expense, within forty-five (45) days of such occurrence, or such property owner shall execute and file with the Kettle Falls city clerk a waiver of claim for any future damage resulting from a back flow of sewage from the clogging of the city sewer lines, releasing the city from any future damages or expense.

C. The city recommends to owners of existing buildings connected to the city sewer service which have a flood level rim located below the elevation of the next upstream manhole that a sewage back flow device be installed.

D. Every installation shall provide an approved clean-out on the downstream side of each back flow device.