Water Environment Federation (WEF) Discussion ForumsWater Environment Federation (WEF) Discussion Forumshttp://www.wef.org/TechnicalDiscussions/jfuller@wef.orgTue, 13 May 2008 22:41:57 GMT20http://www.wef.org/TechnicalDiscussions/Topic8546-11-1.aspx<div class="Quote">What is the near term and long term outlook for repairing/replacing manholes, manhole chimneys, collection systems?<br><br>What is the preferred method for rebuilding manhole chimneys?<br><br>What is the forecast for "infiltration watertight" storm sewers? </div><br><br>I'm not very clear on what you are asking. Are you asking in a "business sense," where you want to know whether there are opportunities for providing this kind of work? Or, are you trying to find out HOW TO do the work?<br><br>In any event, deteriorating collection systems need to be repaired at risk of further damage to the point of catastrophic failure. How they are repaired will depend somewhat on what they are made of (concrete, brick, fiberglass, steel, etc.). I would assume that most are concrete or brick, or a combination of the two. The actual collector piping could also be cast iron, ductile iron, clay, or plastic.<br><br>Perhaps someone with actual experience can jump in.Tue, 04 Mar 2008 18:22:09 GMTJeff Naumannhttp://www.wef.org/TechnicalDiscussions/Topic8546-11-1.aspxWhat is the near term and long term outlook for repairing/replacing manholes, manhole chimneys, collection systems?</P><P>What is the preferred method for rebuilding manhole chimneys?</P><P>What is the forecast for "infiltration watertight" storm sewers?Mon, 03 Mar 2008 13:33:28 GMTjohnsonhw