Back Water Valves Installations: when there is torrential rain fall, the city sewer lines may not be able to handle all of the excess water that is accumulating, which can cause water or sewage to flow back towards your home. This can cause a major problem for your home.
Sewage can flow back through your drain pipes and floor drains causing major damage, and risk of contamination. By installing this type of valve it will prevent any sewage water from flowing into your home. (government rebates for certain cities and municipalities).