Angle for long run to exterior hose bib

Jeff Ogilvie

Hi -
I put in an exterior hose bib to my wife's garden using 1/2" copper that runs through the frame of the cellar window out under the deck to the far side of the deck where the garden is. The exterior length of the pipe from the outside cellar wall to the bib is about 20' and its not insulated in any way. When I put it in I intentionally angled the pipe toward the house and put in a shut off with a drain valve, planning to simply drain the pipe every fall when I shut it off. Unfortunately this did not work since I always forget to shut it off and the pipe has frozen and split twice (once the first year, and again the next year after I replaced it....) So this time, when I replace the pipe for the second time, I am going to change the angle to run down away from the house, in hopes that I can then remember to drain it from outside (after shutting it off inside of course).
Question: is there a recommended angle for the pipe? Should I just angle it at 1/4" per foot which I think is the usual or is there another? Getting better memory cells is not an option.
Thanks!

joecaption

Or just do it right and run it under the house to where it's needed, drill a hole in the foundation and install a freeze proof sill cock, install it under ground below the frost line and install an outside water hydrant, anyway but the way your trying to do it.

wctekkk

I agree with joecaption is the best way but i would insulate the pipe with thermoseal 1/2 wall and grade it towards house after a few more repairs or replacements you'll remember to drain it.

TheEplumber

1/4" ft should be ok. You could always blow it out with air too

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