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Old 09-04-2016, 10:50 AM   #1
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Install new hose outlet/line


I'm looking to put a hose bibb on the opposite side of my house. From the exterior I could drill a hole through the cinder-block and into a bathroom (under the sink) - is it OK to tap into the water line used for the sink? How would this best be accomplished? I have some PEX pipe that I used in our crawl space that I'll use again seeing how none of it is going to be exposed outside.... my main question/concern is around the sink line connection and if there's any issues with that etc

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Old 09-04-2016, 12:18 PM   #2
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Re: Install new hose outlet/line


We need more facts.

What size is the line at the sink?

Do you plan on a frost free BIBB?

What is the available line made of?


ED

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Old 09-04-2016, 12:50 PM   #3
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Re: Install new hose outlet/line


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Originally Posted by de-nagorg View Post
We need more facts.



What size is the line at the sink?



Do you plan on a frost free BIBB?



What is the available line made of?





ED


At the sink it's 3/8 flex line. Can I tap into that or so I need to go into the pipe which is likely only a few inches out from the wall?

Frost free Bibb seems like a good idea.




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Old 09-04-2016, 01:22 PM   #4
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Re: Install new hose outlet/line


Will you be happy with the lack of volume of water, if you tap into the flex line here?

I would not, unless I was just needing water to an outdoor sink at the patio for drinking from.

Do you plan to water plantings, and other high volume uses?


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Old 09-04-2016, 02:21 PM   #5
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Re: Install new hose outlet/line


I would drill into the crawl space and tee off a PEX line for the new hose bib.

Existing PEX line, Sharkbite Tee fitting, PEX pipe, shutoff valve, PEX pipe, PEX to male thread adapter, hose bib.
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Old 09-04-2016, 03:33 PM   #6
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Re: Install new hose outlet/line


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I would drill into the crawl space and tee off a PEX line for the new hose bib.

Existing PEX line, Sharkbite Tee fitting, PEX pipe, shutoff valve, PEX pipe, PEX to male thread adapter, hose bib.


Sorry I should of been more clear the crawl space is WAY on the other side of the house. So I pretty much need to tap into the sink somehow.

Thinking I'll start by moving the vanity and maybe open the wall, I assume there's some pvc or copper pipe I can tap into with a tee and run the PEX through the cinder block.


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Old 09-04-2016, 03:34 PM   #7
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Re: Install new hose outlet/line


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Originally Posted by de-nagorg View Post
Will you be happy with the lack of volume of water, if you tap into the flex line here?



I would not, unless I was just needing water to an outdoor sink at the patio for drinking from.



Do you plan to water plantings, and other high volume uses?





ED


Water grass with a sprinkler/soaker and other "high water" uses.


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Old 09-04-2016, 03:42 PM   #8
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Re: Install new hose outlet/line


I would give serious thought into another place to tee off of, than this bathroom.

Look underneath in the crawlspace / basement, for a full sized pipe to use. then TEE and extend over to the wall, bore through, install a frost-proof bibb, and have full volume and pressure to water the grass.


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Old 09-04-2016, 04:11 PM   #9
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Re: Install new hose outlet/line


Quote:
Originally Posted by de-nagorg View Post
I would give serious thought into another place to tee off of, than this bathroom.



Look underneath in the crawlspace / basement, for a full sized pipe to use. then TEE and extend over to the wall, bore through, install a frost-proof bibb, and have full volume and pressure to water the grass.





ED


Even if I go Ito the wall, before it presumably tees off for the sink?


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Old 09-04-2016, 04:19 PM   #10
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Re: Install new hose outlet/line


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Even if I go Ito the wall, before it presumably tees off for the sink?


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Need to see what is in the wall behind the nice paneling.

Maybe a good spot, , Won't know until you look .


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Old 09-04-2016, 04:57 PM   #11
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Re: Install new hose outlet/line


You certainly should get into your crawl space and see what is there before you decide what you want to do. If this is a complete bath with toilet, shower and sink, it is almost a certainty that you have a 3/4" cold water supplying it. That line would be what you should tap into.
It appears that you have CPVC piping but you won't know for sure until you get up under the house. If you do have CPVC piping, a 3/4 X 3/4 X 1/2 CPVC tee, some 1/2" CPVC pipe, a few fittings, some glue and a hose bib and you are done.
Less work than trying to tap into pipe in the wall. Also probably cheaper than adapters or Sharkbite fittings to switch to PEX. Also give you full flow out the hose bib.

If you live in an area where it freezes you should use a frost free hose bib.
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Old 09-04-2016, 05:42 PM   #12
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Re: Install new hose outlet/line


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You certainly should get into your crawl space and see what is there before you decide what you want to do. If this is a complete bath with toilet, shower and sink, it is almost a certainty that you have a 3/4" cold water supplying it. That line would be what you should tap into.
It appears that you have CPVC piping but you won't know for sure until you get up under the house. If you do have CPVC piping, a 3/4 X 3/4 X 1/2 CPVC tee, some 1/2" CPVC pipe, a few fittings, some glue and a hose bib and you are done.
Less work than trying to tap into pipe in the wall. Also probably cheaper than adapters or Sharkbite fittings to switch to PEX. Also give you full flow out the hose bib.

If you live in an area where it freezes you should use a frost free hose bib.


Maybe easier than moving the vanity and the granite countertop which seems to be caulked onto wall… The toilet next to the vanity might be an easier place tap into seeing how it's much easier access to the wall....


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Old 09-04-2016, 06:01 PM   #13
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Re: Install new hose outlet/line


That looks like a 1/2" copper compression shut off---so my guess is that you have a 1/2" copper line feeding the sink and toilet.

I suggest you use the vanity feed---as the t and piping for the frost free hose bib would be unsightly behind the toilet.

No need to remove the vanity---open the cabinet back and drywall enough to attach a T to the 1/2" feed line---an oscillating multi tool will make that job easier ,if you can lay your hands on one.
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Old 09-04-2016, 06:18 PM   #14
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Re: Install new hose outlet/line


Better go up under the house and look.
The toilet shut off may be a compression fit or it may be a IPS fit.
I pulled up the picture of the sink cold water stop valve and enlarged it. What I thought looked like CPVC now looks like iron pipe with Teflon tape on the threads.
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Old 09-06-2016, 02:37 AM   #15
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Re: Install new hose outlet/line


You have a 1/2" copper pipe feeding the toilet. DO NOT use the small !/2" pipes feeding your bathroom fixtures, way too low flow for outdoor sillcock. Tee off 3/4" cold water line. If you are in a climate where freezing temps occur, you have to install a frost-free faucet too.

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