Inspector1 Posted May 1, 2016 Report Share Posted May 1, 2016 I came across this black short pipe in the crawl space. It was located near the access door away from any plumbing pipe. Possible future Radon system?? Click to Enlarge 45.38 KB Click to Enlarge 46.66 KB Click to Enlarge 42.86 KB [:-bigeyes [:-alien] Link to comment Share on other sites More sharing options...
John Dirks Jr Posted May 1, 2016 Report Share Posted May 1, 2016 That is a back flow prevention valve. It's in the main waste line to prevent municipal sewer line backups from coming into the house. Although you may not see a waste line exposed near it, the line could travel out of the structure under the grade in that area. Link to comment Share on other sites More sharing options...
kurt Posted May 1, 2016 Report Share Posted May 1, 2016 Our anti backflow valves don't look anything like that. What distinguishes this as an anti backflow valve? Link to comment Share on other sites More sharing options...
Jim Katen Posted May 1, 2016 Report Share Posted May 1, 2016 The pipe sticking up out of the ground is just a pipe. The thing at the very bottom of the pipe is the cover from a backwater valve, as John described. I don't see how anyone can actually open the cover in this situation. Someone should excavate a larger hole and put in a sump liner or something with a little elbow room in place of the pipe. Link to comment Share on other sites More sharing options...
kurt Posted May 1, 2016 Report Share Posted May 1, 2016 Ours are iron with a big iron cap. What's that little plastic cap get you to? Link to comment Share on other sites More sharing options...
John Dirks Jr Posted May 1, 2016 Report Share Posted May 1, 2016 Ours are iron with a big iron cap. What's that little plastic cap get you to? Those pipes are fairly large in diameter, usually 6" or more. The picture doesn't show the size of the pipe to well. Link to comment Share on other sites More sharing options...
Jim Katen Posted May 1, 2016 Report Share Posted May 1, 2016 Ours are iron with a big iron cap. What's that little plastic cap get you to? One of these: http://www.sears.com/oatey-abs-3in-back ... 7785291928 Link to comment Share on other sites More sharing options...
kurt Posted May 2, 2016 Report Share Posted May 2, 2016 Wow. Ours are cast iron with a brass flapper. Never seen plastic. Link to comment Share on other sites More sharing options...
mjr6550 Posted May 2, 2016 Report Share Posted May 2, 2016 Wow. Ours are cast iron with a brass flapper. Never seen plastic. Are they still using balloon framing in your area too? How about that new cement? I think its called Portland. Link to comment Share on other sites More sharing options...
kurt Posted May 2, 2016 Report Share Posted May 2, 2016 Too much new cement. It's what's ****ing everything up. Link to comment Share on other sites More sharing options...
hausdok Posted May 2, 2016 Report Share Posted May 2, 2016 I'm going to build a shed using the latest thing - wattle. Link to comment Share on other sites More sharing options...
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