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<br />2. The sewer system cannot handle the extra water during <br />a heavy rain or flood. Because of cross connections, <br />inadequate design, too many new houses. or some other <br />reason, the sewer mains become overloaded and back up <br />into your basement. <br /> <br />~~ <br /> <br />y <br />i <br /> <br /> <br />0'''''''''''' <br />/ <br /> <br />SrREfTCATtHIlASIIt <br />I <br /> <br /> <br />/ <br />1ItJUSI1fIIIfll'~'" <br /> <br />/ <br />""-- <br /> <br />If this is the cause of your sewer back up you can take <br />either of two actions: <br /> <br />1. Let the sewer back up and adjust your basement <br />property so it is not damaged (see previous <br />section on wet floodproofing). <br /> <br />2. Try to keep the sewer from backing up. The rest <br />rest of this section will deal with this subject. <br /> <br />Pl~ls: Since the basement floor drain is the lowest point in <br />yocr house, it is the first place of entry for backed up sewers. <br />The drain can be closed with a rubber or wooden plug during <br />hfBVV rairs. Some drains are threaded ~or a screw-in pl~g. <br /> <br />This is the simplest and cheapest way to stop sewer backup. <br />However, the sewer could backup into the next higher opening, <br />probably a sink drain or toilet. See also the discussion on <br />pressures, below. <br /> <br />23 <br />