I have 2 sump pump pits in the basement, one at each end of the
basement about 70 feet apart one in the front corner basement one in
the back corner. The one in the back has a radon pipe that vents out
of the roof and the 1 ½ inch pipe to pump the water out. The one in
the front corner of the basement has the 1 ½ inch pipe to pump the
water out but also has a 1/12 vent pipe that goes out to open air. Why
does it have the vent pipe and the other one does not?
I ran 3 inch pipe from my radon pipe to connect it to the other sump
pump pit so it would pull the radon from both pits. I also put a plug
over the 1 ½ inch vent pipe thinking it would give more of a vacuum
pull on the radon fan. Now I am thinking maybe leaving the vent pipe
open it may help out with pulling in fresh air under the foundation
helping clear out any radon.
So I am asking what would be the best way and why only 1 sump pump had
a 1 ½ inch vent in the first place. Thanks
I have a radon tester, the odd thing is it will go weeks at 2 or below
then hit a 5 for a few days then back down. The avrage it gives is a
3.5. Maybe my fan is going bad it is 7 years old.
Thanks for the reply Frank
On Nov 16, 7:32 pm, firstname.lastname@example.org wrote:
You do have to be careful about sealing off the basement from the rest
of the house!!..If it is too tight, your heating furnace will not be
able to draw in fresh air for combustion. I have radon vented from my
sump pump pit to outside, and I put in a 6" diameter pipe from the
outside (covered with coarse screening to keep critters out)to the
inside of the outer cover of my gas-fired furnace, to provide
combustion air. The furnace itself is not too tight, and some air can
leak from the non-firing side of the furnace into the rest of the
basement to provide make-up air to go into the sump and then be pumped
out by the radon system. But the sump overall is under negative
pressure and the radon levels have been cut by a factor of more than
I have wondered if you had a basement that had a sump drain to
daylight, with no pump and a couple vent pipes to allow air entry if
this would exhaust the radon out the water drain line, far away from
is radon heavier than air?
What model do you have? I see radon testers at Amazon for $129 - which
would buy a lot of test kits - but having my own tester has some appeal.
(Amazon.com product link shortened)
Anyone have any experience with this tester or others?
Thanks in advance!
On Wed, 17 Nov 2010 05:29:15 -0500, "Robert Green"
I have had 2 of them by Safety Siren , the Safety Siren Pro will show
.1 to 999.9 in pCi/L. tested it with a home that had a company do a
home inspection and mine was the same reading. I been using them for
about 7 years, the first one only did whole numbers the pro 3 does
Radon is one of the reasons for making sure you have
ventilation slits in the walls facing your basement
or crawler space.
Also the floor above it should be airtight.
Those two should reduce radioactivity in the home
Or in other words: In a non-ventilated cellar/crawlspace
r.a. can be up tenfold.
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