Performed CPVC repair at 3/4x3/4x1/2” tee. Completed invoice step and walking to my truck when customer urgently gets my attention saying it’s leaking very badly. Come to find out the connection I made at 3/4” coupling blew apart. I waited almost 45 minutes before testing. Had to run to Ferguson in Spotsylvania to pick up parts for a PEX transition considering the lack of play in the pipes. Completed connection, waited an hour, test and all seems well at this time. 1 year warranty on repair.