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Old 09-02-2009, 07:33 AM   #16
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mike - Radon problem in basement


James,

Thanks for your continued interest and advice. I'll check it out. I'm starting another short-term test today.

Mike

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Old 09-02-2009, 02:28 PM   #17
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mike - Radon problem in basement


I have a couple of these (really only needed one). They work well in my opinion. You can see how it changes.
http://www.amazon.com/Safety-Siren-S.../dp/B000CEAY64
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Old 09-02-2009, 07:47 PM   #18
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mike - Radon problem in basement


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Originally Posted by VelvetFoot View Post
I have a couple of these (really only needed one). They work well in my opinion. You can see how it changes.
http://www.amazon.com/Safety-Siren-S.../dp/B000CEAY64
Yes, Yes. I actually bought one when I was first testing my house. Works well and it continually monitors the levels, short and long term. You just plug it in wait I think it was three days to the hour for the reading. mine still reads zero. I even brought it to all my familys houses to test there homes and they're homes tested hot.
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Old 09-02-2009, 09:15 PM   #19
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mike - Radon problem in basement


Yeah, and you can see the effect of when the fan is turned off.
If I turn mine off it goes from about 1 to 14 or something like that in the basement in the summer. Even in the winter when things are closed up, I don't think the second floor radon level gets too high, as I recall, but I always have the fan on.
PS: The fantech 15 watt model fan did the trick for me at a very low energy consumption.
PPS: I've had those detectors for 3.5 years and they still work.
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Old 11-07-2010, 10:22 PM   #20
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mike - Radon problem in basement


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The book I mentioned is named, Protecting your home from radon a step by step manual for radon reduction. Very informative book. the web site I bought my supplies from is. http://www.infiltec.com/inf-catr.htm#Manual they have everything you need, from the caulk to even the sump covers. What I would do first is order the book, sump cover and the polyurethane caulk. Read the book, cover the sump, seal the cracks then do another reading. and take it from there. I'd say you should put the system in no matter what, when all said and done. Even if the reading is below 4, That's like asking how much radiation would I like my family exposed to, I'd say none. So bank on putting the system in either way the results go because Radon is a class A carcinogen and if you smoke you are compounding the risk of the big C. mine was 18 and I reduced it to 0. my system cost me about $350.00 that's with the book and a radon fan kit. Including the 4 inch pvc to go up to the roof from the basement. the book will explain everything. good luck.
<<<< In response to the above, this looks a little dated but I am getting ready to install a radon mitigation system myself and also thinking about getting the book above. Does anyone know if the book advises on how many slab penetrations to make? I have quite a large basement and I am curious if it will take more than one hole. I have a reading of 8.3 currently with two windows cracked open about a 1/4 of an inch. My reading on the living level was around 12 with windows shut during the summer. My house is only a couple years old and is insulated with spray foam and is very tight. The heating/cooling system also recirculates air from the basement and I am getting ready to finish the basement with two bedrooms, bathroom and living room. Does anyone have some good advise for this situation? Thanks>>>>>
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Old 11-08-2010, 10:14 PM   #21
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mike - Radon problem in basement


I'm no expert. I just did the expedient thing that seems to work. I don't like the tell-tale exterior fan and pvc pipe going up the side of the house to the roof or fans in the attic just so the whole system can be in vacuum. I just put in a dryer vent. I don't see a problem, and the two radon detectors don't either. Maybe if you do need two holes you could put in two low-power fans on either side of the house with dryer vents. My place only has hot water heating with convector so the air doesn't circulate like yours and I don't get much of a radon reading upstairs. Testing with the windows open doesn't seem to do much good, but it sounds you just did a snapshot in time. The electic detectors let you monitor continuously and give you short and long term readings so you can figure out what you have and the system's effect.
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Old 06-15-2011, 07:21 PM   #22
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mike - Radon problem in basement


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Originally Posted by ggogmo1 View Post
Thank you, James Con.

What do I do about the 2+" gap between the floating slab and the walls of the basement?
It's an old thread, but did you come up with a solutions for the 2+" gap.

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