So, in our new home I'm trying to get familiar will all the pipes, values, & shutoffs. Looking at the gas meter, however, I'm getting fairly confused.Here's a drawing to hopefully help:--Wall pipe 1 --"side A"--(regulator) | "side B" |--Wall pipe 2 --Only valve--------(meter)---HWH, furnace, & probably stove There's two pipes coming from the wall. One goes into one side of the regulator. Then, on the other side of the regulator, the pipe splits. One side goes to the meter (and then out of the meter and to the furnace, hot water heater, and in the direction of the stove/oven).However, the other side of the split goes back into the wall, off to who-knows-where. What I can't tell is which of the wall pipes (the one into 'side A' of the regulator, or the one on the same side of the regulator as the meter) is actually the in-feed, and what the other one is doing.Nominally, I'd assume the first one is, but in that case, I'm concerned because I can't find a shutoff valve for the life of me. The only valve is on the wall pipe of 'Side B' although it looks like a street-side valve, and, even with a wrench, seems impossible to move (I didn't try with *too* much force for fear of breaking it, but I gave it a good shove with a large wrench).Can someone help me figure out:1) What exactly "wall pipe 2" does?2) If not the one I labeled, where should I be looking for the shutoff valve?Thanks for your help. I can post some pictures if needed.
--Wall pipe 1 --"side A"--(regulator) | "side B" |--Wall pipe 2 --Only valve--------(meter)---HWH, furnace, & probably stove
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