Copper sulfate definitely works short-term, but I've seen mixed results long-term. Had a client whose older cast iron pipes started showing signs of c...

Yeah, totally agree with checking around first. Another thing to consider is getting a camera inspection done—it's not super expensive, and it'll give...

I've used spray foam around pipes a few times, and honestly, it's a bit of a double-edged sword. On the plus side, it's fantastic for sealing up those...