Fix slow leak on copper pipe coupling?

[MidValleyDad]

Originally Posted by motifone

Neighbor showed me photo of his same setup in their basement, same patina in same places but doesn't remember it being wet and not wet at moment. Theirs is a basement open to garage, so different ventilation. Still wondering about condensation.

I was just thinking the same thing. We get condensation on our incoming waterline at certain times of the year, especially before I started running a dehumidifier in the unfinished basement room where the waterline is. Seems to me if it was a leak there would be evidence on the floor.

[motifone]

Called the water company -- they only handle issue in the street and the water meter itself. Per the previous poster who posted the water company is responsible for the supply side of meter, I might press the issue with a photo to them to better explain the issue. Ultimately, I may wait until fall when condensation is no longer and issue and see what happens then. The water is so slight. If it comes to having to tighten the unions, I'll likely call in someone who knows what they are doing.

[JonahWicky]

Tightening a union is simply a matter of 2 wrenches - one to hold the small nut and one to tighten the large nut. Use adjustable wrenches or pipe wrenches, or channel lock pliers in a pinch.