A coworker told me to try some of the clear liquid adhesive that comes in a small bottle at the local hobby shop. He said you just put it on plastic, put the pieces together and its glued. I found different brand names and purchased Ambroid ProWeld but it didn't work for me. The cap uses a small brush like your wife's fingernail polish. I brushed it on both plastic pieces, put them together, and they fell apart. Then I read the directions: capillary action will spread ProWeld throughout the joint. This means to have to put the pieces together first and then apply the liquid adhesive. I did this and it holds together in 10 seconds. Okay, you can teach an old dog a new trick.