Burying black iron pipe

That was actually described in the old "blue book" the local utility published with gas regulations.

It might, but who cares?

The pipe will outlast your grill no matter what you do to the pipe.

And why three feet? Six inches seems about right.

That should work.

Dan

That blanket statement is false. It's perfectly fine in my area.

steve

wrong

and wrong.

steve

Get a gas fitter or at least someone licensed to do it or you could blow up yours and your nieghbors house. As most of the places ban the use of Galvanized pipe with gas type k cooper tube is all we use here and have started to use plastic buriul pipe . WHAT EVER you do don,t use poly as the gas will break it down.

Now that's what I wanted to hear. I already have the anode, from a second hand marine supply place for $7. About 7"x 2" x3/4" of zinc with a wire coming out of the block. I guess I'll go ahead with that project.

Bob

Why on earth should attaching an anode to the outside of a gas pipe require a "gas fitter"? And what does that have to do with galvanized pipe, other than being a substitute for the protection provided?

Bob

If you use plastic, you have to use a special high density poly that is listed for gas. Suppliers here sell it to licensed plumbers. We have galvanized pipe all over the place for natural gas, particularly on runs across flat roofs. Underground runs that are not done with poly are done with the plastic covered black pipe as mentioned by other posters. The local utility should have a book or pdf available online with regulations for gas piping.

messagenews: snipped-for-privacy@4ax.com...

They are very helpful when you ask them BEFORE you do something.

Like any person, they get really cranky when you try to make their lives difficult by cutting corners or doing a job wrong.

TMT

Need more points for the troll-award 2007?

Nick

How so? A buried black-iron pipe will last 30 years - an outside grill will be luck to last 30 months. We ran an iron pipe, under salt water, to a gas light at the end of a pier. That was over twenty years ago. The lamp is still on. Of course the pipe is covered with barnacles, so that might protect it some. Still...

How so? Burying the pipe is purely cosmetic - you could run it over the grass and it wouldn't matter.

What matters is doing it to code. Below are a couple of examples.

installation and installed in accordance with the manufacturer?s requirements.

Fittings may be wrapped in the field with an approved material. When using nonmetallic

pipe, an 18 AWG yellow continuous wire must be attached to the exterior of

the pipe.

1. Dig a trench approximately 18? deep x 6? wide - The dimension of the trench can be

reduced to 12?x 6? if external damage to pipe is not likely to result. If a

cannot be maintained, the pipe shall be installed in conduit.

1. Run gas pipe and tracer wire - Your contractor is responsible for installing the gas

piping and ?tracer wire.? The piping must be polyethylene and sized properly for the

input of the pool heater.

Even the Brits want 15" of cover

Oh. No good reason, though. Okay.

I had to do it by tomorrow. We are redoing concrete and concrete people will concrete the area tomorrow. I ended up using iron pipes. (which I had to cut and thread in several points).

I coated the iron pipes with a very generous coat of military surplus cosmoline, then wrapped then in closed cell pipe foam insulation, and buried them in river pea gravel. I am on a little hill, so the water table is not even close to the pipe.

I think that they will hold up for quite a while.

I can remember as a kid seeing underground pipes being coated with tar before they were buried. The same treatment was used on oil tanks in the ground.

John

If the gas pipe is coming up through the new concrete, wrap a layer of foam rubber or some such to keep the pipe from being locked in the slab.

No, the new pipe will not touch concrete at any point. I specified it and my FIL will be watching. The area where it goes vertically into the ground, and where concrete surrounds it, they will make a round opening that I will fill with something else. That's also why I decided to buy pea gravel to fill the trench, instead of using crushed recycled concrete that they will use under the new cocnrete as "gravel".

It has been shown here and is common knowledge that black pipe CAN rust out in just a few years. and if the grill only last 30 months, then something's wrong.

Won't meet code.