I have an old beater Cousenon tuba with a small hole in the lead pipe. It plays well enough, but the sound and water leaking from the hole are getting annoying. I understand that having a professional repair the lead pipe is the best solution here. But are there any cheaper repair alternatives? Some sort of epoxy, or solder to patch the hole? I'm not concerned with asthetics, as this horn doesn't get any use outside of Tubachristmas and the occasional noodling around. Thanks in advance.