This is a DCVA I did today. This house is still in construction.. It was rather funny telling about 25 people today ( 6 different contractors) that I was shutting the water off.. Half were like ohhhh nooooo I need it!! we'll do the installation of the system in like 2 months . The pipe was 1.5" PEX.. which I've never seen before, has anyone else? I had the contractor install the 'tee ' point of connection for us.