"Mainline Backflow Products Inc. works with all levels of governments in Canada in a dedicated effort to prevent flooding caused by sewer backups. Our new and innovative product designs have quickly captured the attention of code officials and the plumbing industry across North America making Mainline Backflow Products the professionals' choice for sewer protection. The 'Mainline Fullport Backwater Valve', the flagship product of the company, has brought MBP several nationally recognized awards because of its normally open gate concept."