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Any additional comments: <br /> • Some debris in basement sewer line needs jetting to clean it. <br /> • Downspouts appear to connect to side sewer under basement floor. <br /> Problems Identified <br /> 1) This home does not currently have a backwater valve to prevent backups during high <br /> flow surcharge events. Back water valve installation will be difficult since the <br /> downspouts apparently connect to the side sewer under the basement floor inside the <br /> home, so any valve placed outside the basement wall will flood the house basement if <br /> the valve shuts. Basement floor appears to be concrete with wood joists to support a <br /> wood floor so getting to the side sewer would be a labor intensive repair. <br /> Solution A: disconnect all downspouts per Problem Identified #2, then install backwater <br /> valve at location shown on attached sketch. <br /> Solution B: Install new underground drain line to connect downspouts to side sewer <br /> downstream of proposed backwater valve installation location. <br /> Solution C: Install inside house backwater valve on side sewer (see additional photos <br /> for described location). <br /> 2) (OPTIONAL IMPROVEMENT) Downspouts are connected to the side sewer. This <br /> causes increased flow in the side sewer. <br /> Solution A: Disconnect downspouts from side sewer, extend outfall 3' or more from <br /> foundation, and provide splash block. Verify that surface grade slopes away from house <br /> where downspout discharges. <br /> Solution B: Disconnect downspouts and install rain barrels to retain rain water runoff at <br /> base of downspouts. <br /> As-Built of Sewer and Plumbing <br /> See attached drawing. <br /> Comments <br /> • All down spouts that are connected to the side sewer could be disconnected and <br /> routed to splash blocks so that less flow is in the side sewer causing potential <br /> surcharge events. Where downspouts are routed to splash blocks the ground <br /> surface should be sloped away from the house. <br /> • Installing a grinder pump would provide increased protection from sewer backups <br /> beyond the protection a backwater valve can provide. <br /> S:\#Common\clerical\SIDE SEWER&PLUMBING INVESTIGATION\Final Reports\2nd Batch\1615 Rainer Final.docx 5/2/2011 <br />