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Old 09-19-2011, 03:35 PM   #1
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Outdoor Kitchen and garage faucet plumbing

I am building an outdoor kitchen and garage at the same time, I plan to install a sink in the outdoor kitchen and a outdoor faucet for the garage. I have the trench dug and city inspector approved already.
My question is what type of pipe tubing should I run for the sink and faucet. A Home Depot guy recommended PEX - which I don't believe can be buried. I have been told not to use PVC due to the connections, but to use tubing. A master plumber at another Home depot recommended CPVC and that Poly tubing is not allowed for potable water. I don't plan on drinking the water in the sink or faucet but you never know. I read many blogs and sites and everyone has an opinion all of them different, I can't find it in the code. Any ideas.
Just a couple more pieces of info, I don't want need hot water, it will be buried in the garden, not under a driveway or slab, the trench is 24 to 18inch deep, frost line is 24inches, and I plan to blow out the water every winter season and I am based in Virginia.
Many thanks


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Old 09-19-2011, 04:49 PM   #2
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160 psi poly is the ticket !
Here in Idaho 99.9 % of new homes use poly from the meter to the house.


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Old 09-19-2011, 05:08 PM   #3
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Originally Posted by plumlost View Post
A master plumber at another Home depot
That is a joke.

I agree with the other poster, poly is the way to go. Poly is most certainly approved for potable water. PVC in 20 foot lengths with bell ends is another reasonable choice.

Even though you say you plan to blow it out for the winter, the inspector may require you to bury below the frost line. And he is doing you a favor by doing so.
Coastal South Carolina
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Old 11-08-2014, 03:54 PM   #4
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Go with the PEX. Easy to use and works with sharkbite fittings if you want to use those once you get above ground.
My main incoming waterline from the meter is PEX.
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Old 11-08-2014, 04:17 PM   #5
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Pex can be used below grade, if it freezes it just expands instead of bursting.
PVC or CPVC will crack if it freezes.
Pex also needs less fittings.
There's a time and a place for Shark bite fittings, this in not it.
Way to expensive for this simple set up.
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Old 11-08-2014, 05:43 PM   #6
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This thread is 2 yrs. old
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Old 11-08-2014, 06:17 PM   #7
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Do we see a correlation between DIY and TV? Nothing new so for entertainment we get re-runs.
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Old 11-09-2014, 09:01 AM   #8
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Poly is approved as a water feed to your house as cold water only. You can bury pex just make sure you bed it in sand.


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cpvc , kitchen , outdoor , pex , pipe

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