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Solution: <br /> Replace side sewer so that an adequate grade (continuously sloping down to side <br /> sewer) is achieved preventing debris from building up on valve door. Or install a grinder <br /> pump. <br /> 4) The two (2) downspouts routed to the side sewer connect upstream (on the house <br /> side) of the backwater valve. During surcharge events when the backwater valve closes <br /> storm water from the downspouts would flow back into the house and flood the <br /> basement. <br /> Solution (A): Disconnect downspouts from the sewer, and route them to splash blocks <br /> that discharge to the yard. Fill and cap the abandoned underground downspout lines. <br /> Assure that the yard slopes away from the house where the downspouts discharge. <br /> Solution (B): Reroute the downspouts so that they connect downstream (on the road <br /> side) of the backwater valve. <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 />