Robert Jones Posted December 6, 2012 Report Share Posted December 6, 2012 Today's first inspection. Water main, where it enters through the foundation, sweating like crazy. I think it's been doing it for quite a while as there was quite a puddle of water on the crawl floor. Water was stagnate. Mold growing on the plywood sub-floor. I am guessing high humidity would cause this? poor ventilation? both? Home was built in 63. Outside temp around 50 degrees. Click to Enlarge 27.59 KB Click to Enlarge 36.13 KB Click to Enlarge 37.85 KB Click to Enlarge 33.52 KB Quote Link to comment Share on other sites More sharing options...
John Dirks Jr Posted December 6, 2012 Report Share Posted December 6, 2012 Looks like too much water for condensation alone. Maybe ground water is traveling along the buried pipe and entering the crawl through the pipe penetration. Are you sure its mold (3rd pic) on the plywood? It looks like the pattern is limited to specific pieces of sub floor. Why would mold grow only on that piece and not on the other piece of plywood or floor joists? Quote Link to comment Share on other sites More sharing options...
Rob Amaral Posted December 6, 2012 Report Share Posted December 6, 2012 very cold water would also be part of the equation.. right? Was it a community well? Quote Link to comment Share on other sites More sharing options...
John Kogel Posted December 6, 2012 Report Share Posted December 6, 2012 I'm with John on this one. Too much water for that minimal surface of pipe. It could be groundwater or a leak. Quote Link to comment Share on other sites More sharing options...
gtblum Posted December 6, 2012 Report Share Posted December 6, 2012 It might be a combination of the two. I've been in at least two rain forest basements in the last couple of years that were so wet and humid from ground water, that the whole cold water plumbing supply system, the joists, and the bottom of the floor were dripping water. Quote Link to comment Share on other sites More sharing options...
Robert Jones Posted December 7, 2012 Author Report Share Posted December 7, 2012 Thanks guys. I too think that the water is a combination of sweating and ground water. It's a city feed. Quote Link to comment Share on other sites More sharing options...
Jack Ahern Posted December 7, 2012 Report Share Posted December 7, 2012 Have it tested? Ground water is not treated.[:-banghea Quote Link to comment Share on other sites More sharing options...
Gibsonguy Posted December 10, 2012 Report Share Posted December 10, 2012 Any running faucets? Old seals on sinks and tubs or toilets that run can cause a "non-stop" water flow, never giving the water inside the entrance pipe a chance to warm up. It can cause a lot of condensation if the ground water is very cold (like it is here in Canada!) Quote Link to comment Share on other sites More sharing options...
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