Stuff I don't know

[glatt]

Yeah. That's even worse. Domestic plumbing pipes are never welded. I don't know what they are talking about there. It's like they are comparing 10% of domestic plumbing situations with some industrial plumbing they heard of. And then they talk about fencing. Fencing! Like someone is maybe going to plumb their house with a bunch of fence posts. They say most houses today use PVC pipe. Ok. That's an actual fact they are giving, but PVC is most commonly used for the waste water pipes, not for the supply pipes. So that makes me wonder if they are talking about old cast iron sewer pipes.

It's just a jumble of poorly organized random bits of incomplete information.

They don't mention copper or pex anywhere in the whole article. Copper was king for a long time and is being phased out because of the cost, but is being replaced by pex (at least around here.) Neither are acceptable for gas, where the materials used by BigV are appropriate.