Plumbing, particularly repairs, is not my favorite job. I hate leaks. But remember when we raised the house that I put the HW heater on washing machine hoses? Well, it was still on them and a couple nights ago I was in the utility basement when I took a look at those hoses. One had swollen up about 3 times the normal width. Uh oh. I got materials stocked up yesterday for the repair and went at it today. This meant draining lines and the upper part of the hw heater, then removing the hoses, unsoldering the temporary connectors, cleaning up the run on the cold water side, then dropping legs down to the hw heater which with the raised house is now 36" below. My torch was wimpy with the copper 3/4" lines, especially because water kept draining back into them from the rest of the house. I finally got it fitted, cleaned, and soldered back all together. And thankfully no leaks. Phew! But for the first time I used 3/4" stainless steel jacketed flex lines to connect the hw heater. They are Watts brand, but as I'm installing them I notice, made in China. Has anyone used these? Are they as safe as the old style copper corrugated, flex tubing? The last thing I want is problems down there.