Okay I got a 1/2 CPVC line buried that I'm going to T into. I have way more than enough 3/4 CPVC lying around to do it. I was thinking about 1/2 put a ball valve 1/2 to 3/4 coupling. Running my 3/4 about 70ft and putting a 3/4 to 1/2 reducer and run the last few feet to tie into my 1/2 CPVC main supply. I was told it was fine but wanted a second opinion.