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� - �r' ,t''',i ' ' , , A `„ -,114 <br /> *. ,,i <br /> `' F <br /> " <br /> y{l v y. L .. s_ _ <br /> icy i <br /> M Ai ' <br /> Drain in basement <br /> Solution (A): Solve the issues described under problem 3 and problem 4 below and a <br /> properly functioning backwater valve should protect the drain from surcharge events. <br /> Solution (B): Floor drain needs a check valve installed or a sump pump that discharges <br /> to side sewer downstream of backwater valve to keep the water from backing up into <br /> the basement. <br /> 3) Back Water Valve is sitting in water all the time due to lack of slope on side sewer <br /> and an uphill gradient downstream (on road side) of backwater valve. This will cause <br /> debris to build up on the valve which may cause it to fail during a sewer surcharge. Also <br /> there is a high likelihood of debris clogging the side sewer at this location due to the <br /> grade. <br /> 4 cto A 1 '% t_ , , <br /> Flapper on backwater valve <br />