On Jan 26, 10:37 am, wrote:
I've got an underground sprinkler that stays on all the time. It looks
like we have seven zones in the yard. We found a buried control box for
four zones, unfortunately not the one that controls the suspect
sprinkler. We've been all over the yard and can't find a second control
box. Any suggestions on how we can locate the second control box is
greatly appreciated. As you may surmise, we're not the original owner
of the home.
Thanks in advance.


If the previos owner is available , contact him and ask. You can
sometimes make a guess by making a map of the sprinkler locations and
control box. Once you have the chart of the known 4 zones and the rest
of the sprinklers.

Other than that is there a master valve at the house for the entire
system. ?