How can I repair a section of an aluminum rain gutter? A tree fell on a corner of the house & bent the gutter & it leaks at the end cap. The gutters are the 4-inch size on a double wide mobile home & it looks like it is about a 44-foot one section design? I do not want to attempt to replace the whole length as I don't believe I could do that. What are my options to try to repair it myself?