Solar combiner box
Anyone made there own combiner box if so how and what did you use. Am solar has one for $80 but I am sure it can be built for a lot less.
Forum Discussion
If you look at that combiner box link, he has all the wires coming out of a single hole with a short, horizontal pipe extension. You could lengthen that extension (if you want) and fill it with good flexible caulk making sure each wire is covered with goop. Don't think it would leak.
