Mike Lamb Posted December 8, 2019 Report Share Posted December 8, 2019 A PVC radon venting pipe coming out of the floor in a crawlspace has a sound like water running or trickling in it. Is this an important concern? Quote Link to comment Share on other sites More sharing options...
John Kogel Posted December 9, 2019 Report Share Posted December 9, 2019 No appliance was running, such as a dishwasher? No rainwater downspout nearby? Yes, I would include that in the report. Could be a leak, or an underground stream. I got sprayed while under a mobile home one day when a DW went into the rinse cycle. 😬 Quote Link to comment Share on other sites More sharing options...
CNewhouse Posted December 9, 2019 Report Share Posted December 9, 2019 Was it raining during your inspection? I'm wondering if maybe water was entering the radon vent termination at the exterior and following the PVC pipe into the crawl, then leaking out the perforated pipe? Quote Link to comment Share on other sites More sharing options...
Bill Kibbel Posted December 9, 2019 Report Share Posted December 9, 2019 Some reduction systems' intake pipe is directly connected to the sub-slab drainage piping. Sometimes water is being sucked up and drains back down. It's usually more of a gurgling sound. There's often a tremendous amount if vapor sucked up into the intake. If the exhaust pipe is on the exterior, the vapor condenses during cold weather and drains back down. I have a neighbor who is referred to nationally as the godfather of radon mitigation. His systems include dealing with the condensate: 2 Quote Link to comment Share on other sites More sharing options...
Erby Posted December 10, 2019 Report Share Posted December 10, 2019 (edited) I've heard that before, though mine sounded more like a washing machine, primarily because the pipe was trapped. Both the vapor sucked up out of the ground and the water entering the top of the pipe couldn't drain back into the ground. Edited December 11, 2019 by Erby Quote Link to comment Share on other sites More sharing options...
Erby Posted December 10, 2019 Report Share Posted December 10, 2019 Of course, after I played my video, what comes up? Why a Mike Holmes radon video. Skip to 6:30 to see where they placed the fan and terminated the pipe. Nuts! Quote Link to comment Share on other sites More sharing options...
Tom Raymond Posted December 10, 2019 Report Share Posted December 10, 2019 Holmes is a hack. Quote Link to comment Share on other sites More sharing options...
ejager Posted December 10, 2019 Report Share Posted December 10, 2019 16 hours ago, Erby said: Skip to 6:30 to see where they placed the fan and terminated the pipe. Nuts! All right, as a Canadian who has only seen systems like this one, I'll bite.Why are the fan location and termination location problematic for you? Quote Link to comment Share on other sites More sharing options...
Anatol Posted December 10, 2019 Report Share Posted December 10, 2019 1 hour ago, ejager said: All right, as a Canadian who has only seen systems like this one, I'll bite.Why are the fan location and termination location problematic for you? Typically, the fan should be in unoccupied area, attic or the exterior and the vent should terminate above the roof line Quote Link to comment Share on other sites More sharing options...
Bill Kibbel Posted December 10, 2019 Report Share Posted December 10, 2019 Canada does not require installations meet the US mitigation requirements. In fact, they discourage exterior fan installations and above the roof terminations. They also "suggest" discharge pipe terminations be a minimum of only 30 cm from openings into the building. Quote Link to comment Share on other sites More sharing options...
Tom Raymond Posted December 11, 2019 Report Share Posted December 11, 2019 14 hours ago, Bill Kibbel said: Canada does not require installations meet the US mitigation requirements. In fact, they discourage exterior fan installations and above the roof terminations. They also "suggest" discharge pipe terminations be a minimum of only 30 cm from openings into the building. Proof that we have overblown radon here, perhaps? Quote Link to comment Share on other sites More sharing options...
Les Posted December 11, 2019 Report Share Posted December 11, 2019 55 minutes ago, Tom Raymond said: Proof that we have overblown radon here, perhaps? Please don't poke fun at the radon protocols. They are in place for the children. 🚽 Quote Link to comment Share on other sites More sharing options...
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