Connecting 1/4' to 1/2' distribution line - hole size for barb?
I want to connect a 1/4" poly distribution line to a 1/2" poly line. Hardware store sold me some of these barbed straight connectors to do it:
I opted not to spring for the punch device figuring if I'm careful I can just drill a hole for the barb instead.
But, what size hole to drill?