Hi, I have decided to not continue with the closed loop that our 120 came with. It is run by a Reeflo Dart pump & includes a 2" and 1.5" spears valves, connected with union valves, as pictured.
http://i1349.photobucket.com/albums/...ps72e6f37c.jpg
http://i1349.photobucket.com/albums/...ps142906b5.jpg