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Depth of side sewer 10ft from house: 9' 4" <br /> Depth of side sewer at proposed B/W valve installation area: 8' 5" <br /> Any additional comments: <br /> • Half of house downspout lines are already disconnected (preferred). <br /> Problems Identified <br /> 1) House side sewer is not protected by a backwater valve. During sewer surcharge <br /> events sewer flows could back up out of below ground fixtures. <br /> Solution: Install backwater valve at location specified on attached sewer and drainage <br /> sketch. <br /> 2) Area drain at bottom of stairs to basement is tied to downspouts. Drain will back <br /> up with sewage if backwater valve is installed and valve is closed during a <br /> surcharge event. Drain is outside of house. <br /> } <br /> • <br /> 4 <br /> 0 <br /> • <br /> Area drain at bottom of stairs <br /> Solution A: The installation of the Backwater Valve will protect this area from sewerage <br /> surcharges. <br /> Solution B: Install sump pump that drains to yard to help clear the excess water that <br /> could pool up during a surcharge event. <br /> 1/11/2011 <br />