I'm a pretty mechanical/DIY capable guy, but this one has me stumped. The situation: House built in 1966 (Wisconsin). My basement floor drain has emitted a gurgling sound since I bought the house a few months ago.The floor drain has a Dranjer drain seal installed. Below that appears to be some type of ball float mechanism, but the ball is destroyed and I can't removed any of it due to corrosion. Upon investigation I have discovered several things. First, the floor drain appears to just drain straight through the concrete into the ground/drain tile, not the sewer line. Those drain tiles of course drain into my sump pit. My sump pit is sealed air tight, with a radon pipe going just under the clear plastic cover. I discovered that when I turn off the radon fan, the gurgling stops. A stream of water also starts entering the floor drain from the sidewall when the fan is stopped. There is a pipe tapped into the sidewall for the humidifier drain, but the water comes from just below the pipe. So does anybody know what I'm dealing with here? Are these components all setup the way they were supposed to be? If so, what can I do to stop the gurgling noise? I'd like to finish the basement this winter and the sound will drive me insane. Thank you for any help. Video of the drain gurgling: [url]https://photos.app.goo.gl/RGXEAX5fe4t9XuHm6[/url] Video with the radon fan off: [url]https://photos.app.goo.gl/hQ2q3uZTkP2KFU3CA[/url]

After I replaced a bathroom sink, I have a very slight leak at both the cold and hot connections where the lines to the faucet are connected to the copper water supply lines. I am wondering whether I simply need to tighten the connections a bit more, or whether the solution might be more complicated. Can couplings be over-tightened? [attach]111213[/attach]