(A) All piping, fittings, and connections shall be of a size and so installed as to provide a supply of gas sufficient to meet the maximum demand without undue pressure drop between the main and the appliances.
(B) All house piping shall be tested with air pressure of a minimum of three pounds per square inch and the piping required to hold this pressure for a minimum of ten minutes with no drop in pressure.
(C) No house piping is to be run where it is concealed and cannot be accessible for inspection. No house piping is to be run under concrete floors or aprons nor shall it go through or under a foundation underground.
(D) No copper tubing shall be allowed under the floor. Copper tubing connected to steel piping at the floor cannot be more than four feet long and cannot run through walls or partitions or in an attic.
('60 Code, § 5-15) (Ord. passed 6-3-57) Penalty, see § 152.99