Been there Done it
I bought a pack of barbecue sticks at Walmart for a couple bucks. They come in 2 sizes in the pack. Just break off a short piece with the long pointy end and stick it into the loose brake line. Not air tight forever, but does help preventing the rears for bleeding all the way to the master. Takes a lot of fluid if all that 1/4" long line drains. I have a Tech2 and have never needed to use it to bleed my ABS pump. That's only necessary if a bunch of air gets in from above.How did you keep it from draining too much out and getting air in before the ABS? I have both ends to do you know along with new hoses.