Routing irrigation control wire into a garage?

plumb_pete

I'm installing an irrigation system in my yard and have my control wire all buried, but now I need to route it through the exterior wall of my garage. The most common solution I've seen is to use an LB Conduit Body drilled through the wall. While that sounds simple enough, I'm unsure what to then do on the interior of the wall. Maybe some kind of threaded conduit from the LB and a locknut? Do I just glue more PVC conduit to the LB and then...

Originally asked by sherrellbc on Stack Exchange (diy) (CC BY-SA 4.0).

uphilltech

Great question — answering as the UphillTech team:

If you are working with a standard home irrigation controller, the wires to the manifold valves outside are low voltage, usually 24V. Therefore you do not need to put the wires in a conduit. Of course you can run conduit, but it is not necessary. You can simply run the wire and caulk the area where the wire comes through the wall. If you do decide to run conduit it needs to be done as with other home electric devices. The controllers usually have a knockout to attach a threaded end to the control box. This makes the installation neat.

Full answer by RMDman: https://diy.stackexchange.com/a/332155 (CC BY-SA 4.0).

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