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<br />FLOOD FIGHTING METHODS 2003 <br /> <br />6.3A <br />Page 57 <br /> <br />Protection of Water or Sewer System <br /> <br />Water or sewer systems can be protected by placing <br />corrugated metal pipe (CMP) over the manhole (see Figure <br />21). Lay visquine up the walls of the CMP and place <br />sandbags in the form of a half pyramid around the CMP to <br />seal it to the pavement. This method will prevent mud and <br />debris from entering the system and also act as a surge <br />chamber. <br /> <br />Using corregated metal pipe (CMP) over manhole to isolate <br />sewer line or prevent contamination of water system. <br /> <br />CITY WATER PROTECTION <br /> <br /> <br /> <br />Use sandbags to seal <br />pipe to pavement. <br /> <br />Using corregated metal pipe (CMP) over <br />manhole to isolate sewer line or prevent <br />contamination of water system. <br /> <br />Figure 21 <br /> <br />28 <br />