Hi Wayne, Go ahead and use PEX, I have always used the Wirsbo Brand...there are as many brands as there are Chinese manufactures of everything else plus there are quality brands, and everything in between just as everything in life...you get what you pay for.
No team has ever come back from a 3-0 deficit in a playoff series. The 1951 New York Knickerbockers, the 1994 Denver Nuggets, and the 2003 Portland Trailblazers came back from a 3-0 deficit to tie the series at 3-3, but neither won their respective Game 7. Eight teams, however, have rallied back from a 3-1 deficit.
On January 4, 2014, the Colts and the Chiefs played in a Saturday evening 2014 NFL Wild Card playoff game. The teams combined for 89 points, with the Colts winning 45-44. Following an early second half Chiefs touchdown, the Colts rallied back for a 28-point comeback, the second largest comeback in NFL playoff history.