Thank you for the reply.
I am sorry to hear the trimmer is still leaking. it would be difficult to adapt the weed eater tank to the trimmer because the extra line would have to plugged. I am not sure what size line is on the Bolens trimmer now but you might be able to find a line that is slightly larger than the line on there now. To do this I recommend taking a piece of the line to a local mower repair shop and see if they have any line that is larger. I know the Sears Grand Store here has a fuel line replacement kit for trimmers but I do not know what size line it has. If you find a larger line, remove the small line from the tank, attach the fuel filter to the larger line, and reinstall it the same way as before. Just be careful not to pull it so hard because the line might slip off the filter easier. The larger line might compensate for the larger hole.
Now to ethanol, I cannot say for sure if it caused the problem with the tank but now that we have it, we see more fuel line problems. The line does not seem to hold up as it used to. if you live in an area that still has gas stations that sell ethanol free gas I recommend going there for you lawn equipment gas. Please let me know how this works out for you.