Let me just say this is a great bunch of forums -- so glad I found it.

I have a Hunter control box with 6 existing zones, and and I need to add zones, but its full, so I am putting in a second box so I can add four additional zones.

I thought that I would begin by locating the master valve control box, but for the life of me, I can't find it! Our house is a newer house (less than 5 years) but all i can find are the different smaller valve boxes. Its almost like the sprinklers are connected in a series.

How to tap in and add extra zones??