wrote in message
...

you want the pipe to slope downward away from home.... since radon is
heavier than air

I would do a second one....... just to be on the safe side.

this is called passive radon control. no fans no power and nothing to
maintain



Mission complete and levels have still been lowering since finishing it up
yesterday afternoon.

pic -

http://i70.photobucket.com/albums/i1...r/DSC00539.jpg

I couldnt get 1 inch PCV piping under there so I used 5 1/2 inch PCV pipes
painted black. And used five 45 degree angle plastic elbows close to the
slab connection. I put a long thin rock on top of the pipes before
pouring the dirt in. So far so good.

Haller, this so called Passive Radon Control wouldnt pass inspection if I
said im using it for radon ?

And when you say radon is heavier then air. Dont you mean lighter ? So
that it could escape out ?