On Jan 26, 12:55 pm, "JoeSpareBedroom" wrote:
"dpb" wrote in ooglegroups.com...

On Jan 26, 11:17 am, "JoeSpareBedroom" wrote:
"dpb" wrote in
ooglegroups.com...
...
...the underground wire tracer is the next best bet.
...
Do you need a building permit to install underground sprinklers? If so, I
wonder if the location of all items might be listed, particularly since
there would be concern about installing near gas & water lines.

Nowhere I'm aware of, certainly. The depth of a lawn sprinkler system
barely scratches the ground, nothing close to the depth of any utilites
so the interaction there is of minimal concern at most.

How deep are the pipes under the soil?

Which pipes? Lawn sprinkler systems (as opposed to golf courses, etc.,
that may be quite a bit deeper sometimes owing to the size and that
they tend to not count on draining them for cold weather, etc.) ime may
be as shallow as 4-6", most often 6-12" and rarely, if ever, deeper.
Often they're installed w/ a slitter rather than a trencher to minimize
damage to existing sod.

Utility water lines, otoh, are at least below frost line and any buried
electrical/telephone, etc., are also deeper.