I am female, a woman 'of a certain age' who is still trying to decide what I want to do when I grow up.
Oop's good luck, gotta be very careful with plastic connectors...
Ice maker feed line? You didn't say which room you'd performed your Superman imitation... might also be a filter/softener back flush, feed to an Everpure spout. Lots of possibilities.P.S. I chose Superman over Supergirl as, at our age, it just sounds ridiculous. I'll use Wonder Woman next time, if you have a preference.
I'm finally back on line checking up and LOOK at the progress you have made. I am not sure that I could have pulled it off in that heat. Rest, organize and stay cool.
Hate it when that happens!