I think i know the answer but am hoping i dont. just tied in two new risers which was a bear having to cut in and use left right nipples 4 inches apart. dont worry i kept gauges on all four sections simultaneously while i worked to make sure if they ever lost pressure id know where the problem was everything held 3 lbs the whole week i was working on it.I bought this 100 year old house which i think was previously used as the museum of worst construction practices and how to kill people. The meter was actually hanging from a vent line with a old rope when i closed. It was so scary i could hardly bare to look at it but did manage to hang the vent with clevises instead of friction the clevis to upside down clevis down to the pipes on either side of meter. it was still to scary to look at but had to shut down the gas and swing it out of way for the first test gauge to get my work done. which is when i realized the line coming in was 1 1/2 then reduced to 1 1/4 for no apparent reason ok no bigggie, because the 20" run from the meter to boiler room which i had to cut into was a new run of 1 1/4 put in while i was in contract because stupid owner stupidly shut off heat to save money on empty building despite my protests and when pipes burst and wanting the gas turned back on the 100 year old painted pipes failed utility test and he had to pay to re run that line so i could get a loan, i found a licensed contractor for a good price since a permit and inspection were then required. what i never noticed was the 1 1/4 pipes on both sides of meter are bushed down to 3/4 where a special S shaped fitting that has a gasketed compression on one end for meter attach. my question is isnt that reduction to 3/4 on both sides of meter effectively giving me 3/4 service or is there some special law of venturi for gas meters and i dont need to make the utility repipe the damn meter head and recap and test the whole house all over again it would be nice to get it done properly but of course that work was done by the utility to begin with which is scary.
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