Questions tagged [radon]

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2answers
41 views

slab heat pipes and radon reduction

My house has slab heat and the pipes come out of the dirt and go to the heating unit. This is located in my basement and I'm wondering how to seal it to help reduce radon entering the house.
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1answer
150 views

Does this vent cap limit passive air flow?

I am looking at various vent covers for my house. I have a 3" Plumbing vent stack and a 4" Radon vent stack. The radon system is passive, which means I do rely on a chimney effect along with the ...
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1answer
78 views

Loud and HOT radon mitigation fan

I just got a Radon mitigation system installed and it is very loud, much louder than the AC unit that it sits next to (fan is installed outside). The housing of the fan after only a couple of hours ...
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4answers
5k views

Is this pipe in my basement floor intended for radon mitigation?

This pipe emerges from the concrete slab floor in a corner of my house's full basement. I believe it's a 4" polyethylene sewer pipe (narrow walls, black interior, white exterior). I can't tell if it's ...
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1answer
69 views

Should I attempt to repair a leak in my radon mitigation system's pipework?

My radon evacuation system has been in place for about 10 years and it operating efficiently. However, the caulk that was used around the outdoor fan has deteriorated. When I cleaned up the area to ...
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4answers
108 views

Why is my Radon level high even with passive ventilation in place?

We have about 6 PVC pipes with Aqua covers on them that were installed when we built our log cabin. We were told that they were for the Radon to escape. We just had a 24-hr test done and the ...
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2answers
72 views

Concrete vs suspended floor over vapor barrier

Our house has a sizable crawl space large enough to use as storage. The space has no slab covering it, but due to radon issues, it does have a vapor barrier to maintain a suction for the radon ...
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6answers
8k views

Radon test results came back as 1.7 pCi/L, is it safe to exercise in my basement? [closed]

My Pro-Lab Analysis Report just came back and it says that my basement has 1.7 pCi/L (Picocuries), the average result of both tests. The basement is the only place I have to exercise, so I'm ...
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3answers
16k views

Loud Radon System Noise

Our radon system is right under/outside our 6 month old's bedroom. Over the fall and winter I never heard it but now it is running a lot and it is very loud and it is affecting our daughter's sleeping....
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4answers
244 views

Radon Manometer shows negative prey when off

I had a Radon mitigation system installed last week. When I turned on the fan it was all working great. A few days later the pressure level started to drop a little each day, until day 4 it was even. ...
4
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1answer
336 views

Ice In Radon Mitigation System

I have a fan powered radon mitigation system installed in my house. It was installed in 2016 and I have not had any issues with it until this winter. I live in northern Iowa where we have been ...
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2answers
96 views

Radon in water mitigation

I need to install a Radon in water mitigation system. Is there a Do It Yourself way to do this with a simple aeration or filter system. I already have a pH adjustment system in my basement ( Calcium ...
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1answer
376 views

Sump pump pit fill-in / Radon mitigation

I live in a partially below-ground finished basement of someone else's house. I have recently tested for radon and found the level to be elevated. There is a 2-foot deep sump pump pit in the ...
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1answer
532 views

Has anyone heard of or have experience with a reverse pressure radon mitigation system for your home?

We purchased a home that had one installed during construction. I'm just wondering if people have had a positive experience with this type of system and can explain how it works. We just had a radon ...
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1answer
2k views

How to read my radon system

I have a radon system in my recently purchased home which looks like this: However, I have no idea how to interpret what it is telling me. Can anyone provide clear and easy to follow instructions?
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1answer
92 views

Which RadonAway fan is this?

I am replacing my RadonAway fan which has seemingly burnt out. However, the sticker on the current fan identifying the part number is self-contradictory: It's marked as an RP265, but part number ...
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0answers
199 views

Running 4" PVC pipe through foundation wall

I am installing a radon mitigation system and my plan is to go off of the sump pump (I bought one of those covers that seals it up good and lets you pass a PVC pipe though it). The easiest thing to ...
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4answers
10k views

Should I install an indoor or outdoor sump pump, or both?

I have a full basement in a cold climate (North Dakota). The previous owner had a raw hole broken out of the cement floor that must have served as an emergency sump pump hole. We haven't had water ...
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3answers
3k views

What types of home radon mitigation systems have you used, and how well do they work? [closed]

What types of home radon mitigation systems have you used, and how well do they work? Do recommended types of mitigation systems vary significantly with varying levels of excess radon? Does climate ...
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1answer
280 views

Fill hole in slab beneath tub to reduce radon?

We recently discovered that our downstairs bathtub has a large hole in the slab beneath it where the tub drain and a few other pipes go into the dirt. We had a radon mitigation system put in a few ...
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2answers
426 views

Radon fan with submersible pump. Is this normal?

New home owner here. When I bought my home, they did the radon test and found the levels high, so a radon fan was installed. I recently investigated the radon fan setup, and discovered that it seems ...
2
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3answers
3k views

What could cause radon levels to be higher on the 3rd floor than the 1st and 2nd?

Details: It's a 3 story building. Each apartment has its own HVAC system. There is no shared ventilation system. The foundation is a slab. The radon levels on all three floors were measured ...
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1answer
79 views

How could the location of a radon abatement hole impact its effectiveness?

The radon level in my partially finished basement is from 8 to 11 pCi/L. I'm looking to have this installed professionally by contractors and the recommendation so far is to create the hole near the ...
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3answers
482 views

Sump is sealed for radon remediation and doesn't drain water. What can I do for water drainage?

Yesterday our 80 gallon water heater (less than 5 years old) ruptured - flooding our basement. Situated right next to the water heater is our sump - but it didn't do 1 ounce of its job, because it is ...
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4answers
633 views

What should I know about radon levels at home? What levels are safe and do they affect resale value?

My wife and I are looking to buy our first home. We recently found one, but a report says the radon levels inside the home are unsatisfactory. I've never really been aware of radon levels in homes ...
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2answers
1k views

Can I cover these pipes in my basement floor with concrete?

I have a 18in by 18in area in my basement floor that is open dirt. The house is measuring high for radon so I need to seal this up as it is a major source for radon getting into the house. There are ...
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1answer
32 views

How can I fix and cap my undersized sump?

So, I have an old Sump in my house (built 1960), that currently does not have a functioning pump in it. I plan on replacing the pump and running new exit pipe however, I'm stumped on how to close/cap ...
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2answers
5k views

radon mitigation fan running, but u-tube manometer shows no pressure differential

We moved into this house in New Hampshire a year ago. Tons of radon off-gassing in this area due to granite rock substrate . Home inspection showed that the mitigation system was functioning properly,...
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2answers
1k views

Do I need to close the windows and doors in the entire house when doing a radon test?

I'm trying to perform a home radon test, the first step in the instructions for the Pro-Lab Radon Gas Detector Kit read that I need to close all the windows and doors for 12 hours before hand. Do I ...
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2answers
3k views

Can I use an air to air heat exchanger to fix a radon problem?

I tested my basement for radon, and found that it was twice the allowable level (8 pCi/L). Can I use an air-to-air heat exchanger to reduce the radon level, and to pump fresh clean air into my ...
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1answer
320 views

Radon abatement complete, but contractor used weird wiring?

We had a contractor do radon abatement, which involved adding a fan to pump air out from under the slab. They decided to power this fan by hard-wiring an extension cord. There is a disconnect switch ...
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2answers
364 views

Will a generic carbon filter reduce radon in my water?

The title pretty much says it all. Will a carbon filter like this help reduce radon in my water?
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3answers
14k views

What can I do to mitigate radon while waiting for a full radon mitigation system?

Before people jump all over me, let me state; I am NOT trying to fool a test! We already had the tests done 2 days ago and it came back at 6.8 pCi/L, which is high enough to cause concern. The only ...
7
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2answers
5k views

What is the best way to seal a French drain board due to high levels of radon?

The Radon level in my crawl space is above the threshold (~5.5) and the level in my basement is around 4. I'd like to install a radon mitigation fan that sucks air from the sump pump of a French ...
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0answers
864 views

How should I seal and insulate a crawlspace to mitigate radon and allow for storage in the space?

Background: I recently bought a house built in 1996. It has a 1480sq ft (approx) living area, which is the same as the crawl space size. The location is in the Kansas City metro area. The yard is ...
4
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1answer
8k views

Water Noise When Radon Fan is On

I've got a radon fan installed in my basement, but no sump pump. Starting a few days ago, I've started hearing a constant gurgling or bubbling sound from a basement wall that is 15 feet from where ...
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2answers
3k views

What materials should be used to seal a square sump pit

I have a sump pit in my basement that I want to seal to reduce the radon levels which are around 6 The problem is that all of the sump pit covers I have found are round. It seems like they won't ...
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0answers
49 views

3“ radon vent 4” roof jack

I have installed a 4" oatley vent flashing and drilled holes in roof and walls with a 4-1/8 bit. Unfortunately the radon coupler out of the concrete is only 3". This was a plumbing mistake and long ...
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2answers
801 views

How to seal HVAC ducts running through old window to addition?

My house has a small addition that was added by the previous owners. They ran the HVAC ducts through an old window and some of the block: The rectangular section in the window should be easy enough ...
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0answers
135 views

Suggestions/advice on vapor barrier product to use?

In the basement of my house (built in 1900) in NE Ohio...Half of the basement floor is finished, the other half is dirt floor covered by a few inches of crushed stone gravel. I had a mold issue, so ...
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1answer
2k views

My radon manometer has a red reading, what should I do?

We purchased a home a few years ago and it has a radon mitigation system. I just happened to go downstairs and look at it and noticed this reading. What should I check? Should I be alarmed? EDIT ...
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1answer
1k views

Is it normal to notice underneath the plastic barrier in crawlspace drops of water?

A radon barrier was placed using 6mil polyethylene sheets and sealed with silicon in at the seams. However, I do notice in certain spots a couple of drops of water underneath the sheet. Is this okay? ...
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1answer
6k views

Radon Manometer U-Tube is almost equal

I have a radon system in my home with a u-tube style manometer. the reading over the past year has been almost 0*. I called the serviceman who told me it was fine as long as I could hear the fan ...
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1answer
91 views

Will new bottom plates in basement allow radon penetration?

I am getting ready to finish my basement. I can use Tapcons or a Ramset to attach the bottom plates of the walls to the concrete slab with drain tile underneath. Will these holes from the screws or ...
2
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1answer
135 views

Is a large change in radon test results normal?

I am selling my home in Georgia and just had a Radon test result of 7.0 as part of the buyer's inspection. When I moved in 10 years ago the test result was only .9. Is this much change normal or ...
2
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1answer
568 views

how can I reduce manganese, hardness, radon, and prescence of coliforms in well water?

I'm purchasing a home in NH and just received my comprehensive water test from the inspector. Here are the marks I'm most alarmed at. Hardness 264 (want it under 75) Manganese: .51 (want it under .05)...
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3answers
7k views

What is the liquid in a Radon U-tube Manometer?

What is the liquid in a radon U-tube Manometer? I'm assuming that it's not water because of evaporation. Mine is clear in color, but I've been reading that it's normally blue or red. Is it a ...
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1answer
4k views

How can I build my own water aeration system for radon mitigation?

My house has a well. The well pumps water into a pressure tank in my basement. The pressure tank sends the water through a small whole-house filter and into the plumbing. I have high radon levels in ...
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3answers
2k views

Vented vs unvented crawl space

I've asked this question before: What are the pros and cons of a vented vs unvented crawl space? However, now that I'm going to get air conditioning the question comes back again and again people ...
2
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1answer
1k views

How can I install an interior cat door to the basement and not have it kill me? (from increased radon)

I recently purchased and moved into a new house with an unfinished basement under part of house and crawl space under the rest. We have 2 indoor cats and I would prefer that their litter box be in ...