I am planning on replacing the shut-off valves and supply lines on my bathroom lavatory faucets. The current shut-off valves are sweat soldered on. In order to preserve the existing copper tubing (2 - 3" stub), I would like to remove the existing shut-off valves by unsweating them rather than cutting them off. I have a few questions.
1. I have zero experience sweating or unsweating joints. Besides getting the water out of the line, what are the keys to success for unsweating a shut-off valve?
2. How long should I have to heat the shut-off value before it breaks loose?
3. I plan on installing compression shut-off valves. What type of "dressing" do I need to use on the ferrell and nut, if any?
Thanks,
Bertman48
1. I have zero experience sweating or unsweating joints. Besides getting the water out of the line, what are the keys to success for unsweating a shut-off valve?
2. How long should I have to heat the shut-off value before it breaks loose?
3. I plan on installing compression shut-off valves. What type of "dressing" do I need to use on the ferrell and nut, if any?
Thanks,
Bertman48