blah wrote in news:2aj6h15fflsjc1get98rruf93g1pcnlpkg@
4ax.com:

i noticed one of the sprinkler heads leaking when the water is off.
the system still waters fine but that head seeps when everything is
off. i thought i just needed to replace the one head so i removed and
capped it. when i capped it the other two heads in the zone started
seeping(more of a fast leak...spray up a little). the leak seems to
come and go...if i turn if off and on a few times it may stop leaking
but only start up again next time its used or what not. the sprinkler
system was self-installed by the previous owner and i don't know where
anything is under the ground. what could it be?

thx

The valve for that zone is not completely closing when it is turned off.
You have to find the valve and rebuild it (if you can get the parts) or
replace it. Either way, without knowing where the valve is, you're in for a
lot of digging.