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4) 4 Downspouts are tied into side sewer. This causes increased flow in the side <br /> sewer. <br /> 11" <br /> )t - <br /> � r . <br /> • <br /> I. <br /> Catch basin in backyard being fed by downspouts that drain to yard (preferred) <br /> Solution A: Disconnect downspouts from side sewer, extend outfall 3' or more from <br /> foundation, and provide splash block. This must be done before the Backwater Valve is <br /> installed otherwise during a surcharge event the downspouts water will back up through <br /> these floor drains and flood the area. <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 /> a Installing a grinder pump would provide increased protection from sewer backups <br /> beyond the protection a backwater valve can provide. <br /> 1/11/2011 <br />