Carrier's blower problem

>
>I just installed a sprinkler system at my house. I tied it into the
>main line down in my basement using a ball-valve shutt-off and included
>a drain for the system.
>
>My dad is going to install a system at his house but has no basement.
>How do you typically install a main shutt-off and/or drain valve and
>tie it into the main line in a region where freezing is typical
>(Colorado) if you don't have a basement? If he ties it into the main
>line under the house he has to try to get into the crawl space every
>year to access the shuttoff valve, not a good option. If he ties it in
>outside he has to install the shutoff valve deep enough so it doesn't
>freeze... 4 feet or so. That's a large access hole to dig and have in >the yard.
>
>Thanks
>
>

Somewhere in heated space like the laundry room, if possible. I had outside water shutoffs installed well inside a partially heated garage, as an example.

Banty