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Any additional comments: <br /> • The back door into the basement has a ramp leading down to it. During a heavy <br /> rain surface water flows down this ramp into the basement. <br /> • The side sewer slopes up approximately 2" (vertically) after the backwater valve. <br /> Therefore the backwater valve is in standing water all the time. This causes the <br /> backwater valve to get debris on it often, and makes a watertight seal during a <br /> surcharge event unlikely. <br /> Problems Identified <br /> 1) Ramp at back door allows water from the yard to flow into the basement. <br /> Ijiq <br /> • <br /> i <br /> S <br /> Door to basement <br /> Solution A: Add a small lip or berm around the top of the ramp to divert the water away <br /> from the basement ramp. An overhang should be built to keep rain from falling on the <br /> ramp below the berm. Also, the adjacent area should be sloped away from the berm to <br /> allow positive drainage. <br /> Solution B) Add a sump pump and sump pit at bottom of ramp that pumps to side sewer <br /> downstream of backwater valve, or pumps to yard. <br /> 2) Floor drain backs up during surcharge event. There is a small trench around the <br /> entire inside of the basement that drains to this location as well. Water does not have <br /> enough pressure to overcome the surcharge from the sewer during a high water event. <br />