Hi all. The low point drain valve on my water heater is leaking. It is attached using a crimp band. I have attached a photo. Any recommendations on how to remove the crimp band and replace the valve? I tried to seal the leak on the original valve and add a 2nd valve under it but the original valve is still leaking so I need to remove it. Unless there is a way to seal the leak. I tried silicone but can’t get it to stop. Open to ideas.