if it was in PVC conduit it would have to be vented to atmosphere to detect any leaks they would consider that a double containment pipe…is the grill line set up in way u can Tee is before it goes under ground? like tee right at that valve
yes. I have the black pipe exiting the house, imediately to a 90° elbow, a 4" nipple then the shut off valve. from the valve, I just have the flex gasline straight to the grill.
thats your best bet then. to avoid fittings or unions underground i still prefer CSST…but thats me
CSST is difficult to get your hands on if you’re not licensed though, at least from what I’ve read.
I was going to add i would ask once I get back to work on Tuesday but it seems like you’re good to go
MaximaSE98, where do you work??? NFG?
They make a green coated iron pipe that is rated for direct burial. I am in the city of Buffalo and I was told that I have to be at 12" depth and leave the structure using that coated pipe. The inspector that I spoke with said that it is a corrosion barrier to keep the iron from rusting through. this is for a grill so the fire pit may be different but I doubt it… I will be replacing a street 90 in my basement with a tee and from the tee, iron to a shut off valve then out of the structure with the coated pipe so long as I can find it at HD or Lowes.
I’m going to go with the yellow corrugated flex pipe just for ease. I have found it for $3.00/ft.
These might be a little over the top for your application, but I know who I’m talking to…
These ends let you run your line inside a sealed steel conduit where it comes up, the rest is plastic, same as the gas company would use. Wrap it in a copper wire at both ends so its traceable if need be.
At the end of the day, you could just run flexy copper with flared fittings. However, I would not run copper in a steel conduit as they hate each other chemically and will leak in time due to dielectric corrosion. Just burry it bare and deep enough to avoid gardeners.
I was advised by a foreman at work(NFG) you can go to any plumbing store and get plastic gas line. 5/8 or 1 inch like we use for svc lines and we bury the line 24-36 inches deep!!!
I ordered CSST off Amazon. 25ft of 1/2" with fittings for $85.
Thats the stuff
FYI: I looked at all the different options and also decided on CSST… however it is not rated for direct burial. It must be in a conduit at least 2x the OD of the tubing and must be sealed at the outdoor end to prevent water from entering. I will be using duct seal to close off the open end of my 1" PVC that it is running in.
wait…crap. I thought I could bury the CSST as-is. It needs furthor protection? If that’s the case i’ll order the otherstuff.
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Alright, just bought this stuff too. haha.
Here in Texas my house has 3/8" copper about 12" under the sufce.
Jay you cant have a union underground. Just put one of those plastic valve boxes in and extend the line, then te fitting isn’t underground.
I did one of these last year, gas line that is. Town of Hamburg inspected. Used plastic approved line buried 18-24" below grade. The riser pipes shown have a slip joint connection at the yellow end. You need a special tool to debur and flare the end for a one time shot at making a gas tight connection when you jam it in. I have some of the line left over, but I’m not sure exactly how much. I can borrow the flaring tool from my plumbing supplier. Otherwise you have to buy one. Town / local codes always supercede state / national code. Hamburg does not allow subgrade iron (black) pipe. I am in Hamburg.