Water Main Supply Line - above ground entry


Old 10-16-14, 09:42 PM
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Water Main Supply Line - above ground entry

I need to run a water main supply line into a building. It's built on a slab with foundation wall and footer about 24-inches below grade. Thought about drilling the foundation wall and floor to keep all exterior piping below grade and below the frost line. Would like to avoid all that drilling if I can.

Am also considering an easier option that would go something like this: run the main pipe to the foundation wall, then up above grade about 18-inches, then elbow through the wall. Encase piping after the underground elbow in 3" or 4" PVC pipe and closed cell foam insulation.

Is there a commercially available solution for this type of entry? That would certainly make the install look cleaner.

Any suggestions?
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Old 10-17-14, 06:06 AM
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No matter what type of insulation you put on the pipe the the temperature will equalize and eventually freeze unless a steady stream or flow is maintained or a heat source is supplied on exterior of pipe. It must be put underground below frost level. No short cuts here.
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