G****y 发帖数: 3537 | 1 The house already has radon mitigation system ( from the sump pump hole, there is a fan and duct to house outside). Do I have to order radon inspection? I think to buy the test kit and do it by myself would be ok. Where to buy the test kit???
The problem is if testing by self, I have to access the house not only one time, right? |
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