Hi,
I'm adding on with a related question for those of you who use form-a-drain.
My understanding from the form-a-drain install notes, is for a drain to daylight is to have the "outside" form-a-drain go to the daylight pipe, and the "inside" form-a-drain go to the radon pipe. I'm wonding is just one connection from the "inside" form-a-drain to the stair well wall (where I plan to go verticle and vent through the 2nd story roof) is OK. I mean the foot print is 1,600 sq ft, is just the one connection enough for adequate venting?
Now, if you have a sump pump because it's too far to drain to daylight, then you connect the "exterior" form-a-drain to the "interior", and from there to the sump pit (with a sealed lid), and from the sealed lid go up through the roof to vent it. Is that correct?
I'm hiring out the footing, wall and slab pours, but the prep work for the radon pipe is on me.
Thanks.