3/4" To 3/8" For Gas Grill - Plumbing - DIY Home Improvement | DIYChatroom
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Old 03-17-2016, 07:56 PM   #1
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3/4" to 3/8" for gas grill


When I had my pool heater plumbed for gas, I had the plumber put a stub in for a future gas grill. I finally got the conversion kit in, and it looks like the quick disconnect is 3/8" but the plumber put in 3/4" pipe. Is all I need a 3/4" to 3/8" adapter, a 3/8" elbow (having the QD pointing straight in the air seems like not such a good idea), a 3/8" nipple to hook my quick disconnect to along with some yellow gas teflon tape on all threads? I'm guessing black iron fittings? Just want to make sure I have all my ducks in a row before doing this, it's such a simple thing hiring a pro for $$ seems silly. I've done basic gas hookup stuff in the house so I know to check for leaks with soapy water, etc. and have a healthy respect, but not fear for working on gas.

I've attached pics of the pipe sticking out of the ground, the sticker on the pipe, and my QD just in case. The ugly white pipe is a hose bibb I also had them run, the rebar is temporary support until I can figure out something prettier
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3/4" to 3/8" for gas grill-wp_20160312_11_53_28_pro.jpg   3/4" to 3/8" for gas grill-wp_20160317_17_33_11_pro.jpg   3/4" to 3/8" for gas grill-wp_20160317_17_39_50_pro.jpg  

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Old 03-17-2016, 08:03 PM   #2
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Re: 3/4" to 3/8" for gas grill


reducing down for 3/4 to 3/8 to connect your quick connect adapter is all you need to do with what is shown...just make sure of the gas pressure needed for your grille ...you don't want it to be to high...may need a single gas appliance regulator....and yes test for leaks...may want to install a dirt leg in the line as well .....

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Old 03-17-2016, 08:22 PM   #3
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Re: 3/4" to 3/8" for gas grill


Thanks for the heads up on the pressure, I didn't think of that. The conversion manual says it is for 7in natural gas pressure (1/4psi if i'm looking up the conversion properly), should I go buy a pressure gauge to test the line to make sure it matches? If so, do you have a recommendation? There's a pressure gauge on my meter that they installed when they put the pool heater in (the existing was too small) but it reads zero best I can tell.
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Old 03-17-2016, 08:40 PM   #4
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Re: 3/4" to 3/8" for gas grill


Quote:
Originally Posted by zolakk View Post
Thanks for the heads up on the pressure, I didn't think of that. The conversion manual says it is for 7in natural gas pressure (1/4psi if i'm looking up the conversion properly), should I go buy a pressure gauge to test the line to make sure it matches? If so, do you have a recommendation? There's a pressure gauge on my meter that they installed when they put the pool heater in (the existing was too small) but it reads zero best I can tell.
you could just hook it up and see how its acts...if all seems normal leave it go ... 7in of pressure is common..Iam guessing your ok on that.. ..if it seems high after hook up ..regulator can always be added..
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Old 03-19-2016, 05:10 AM   #5
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Re: 3/4" to 3/8" for gas grill


Thanks for sharing this image. I will consult my professionals regarding this.
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Old 03-19-2016, 07:12 AM   #6
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Re: 3/4" to 3/8" for gas grill


If you decide to test the pressure, fashion yourself a water manometer using a length of transparent plastic tubing available in stores such as ACE Hardware. A gauge to measure that pressure will be difficult to find, if at all, because it will fall in the test gauge accuracy category and be cost prohibitive.
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Old 03-19-2016, 09:39 AM   #7
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Call your gas supplier to find out what your delivery pressure is.
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Old 03-21-2016, 10:48 AM   #8
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Re: 3/4" to 3/8" for gas grill


Hooked up my adapter and quick disconnect, checked and found no leaks and had a tasty burger off my newly converted natural gas grill last night without issue. Thanks all for the advice!
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Old 03-21-2016, 06:36 PM   #9
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Re: 3/4" to 3/8" for gas grill


thanks for the follow up ...its nice to know how things turn out...

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