Gas Act 1986

8 (1) Where a person supplied with gas by a public gas supplier uses the gas for working or supplying an engine, gas compressor or other similar apparatus or any apparatus liable to produce in any main of the supplier a pressure less than atmospheric pressure (any such engine, compressor or apparatus being in this paragraph referred to as a " compressor "), he shall, if so required by the supplier by notice, fix in a suitable position and keep in use an appliance provided by him which will effectually prevent pressure fluctuation in the supply mains and any other inconvenience or danger being caused to other consumers of gas by reason that he and they are supplied with gas from the same source.

(2) Where a person supplied with gas by a public gas supplier uses for or in connection with the consumption of the gas so supplied any air at high, pressure (in this paragraph referred to as "compressed air ") or any gaseous substance not supplied by the supplier (in this paragraph referred to as " extraneous gas "), he shall, if so required by the supplier by notice, fix in a suitable position and keep in use an appliance provided by him which will effectually prevent the admission of the compressed air or extraneous gas into the service pipe or into any main through which gas is supplied by the supplier.

(3) Where a person is required by this paragraph to keep in use any appliance, he shall at his own expense keep it in proper order and repair, and repair, renew or replace it if it is not in proper order or repair.

(4) A person supplied with gas by a public gas supplier shall not be entitled to use a compressor, or any apparatus for using compressed air or extraneous gas, unless he has given to the supplier not less than fourteen days' notice of his intention to do so; but this sub-paragraph shall not apply to the use of any compressor or apparatus which was lawfully in use immediately before the appointed day.

(5) If any person makes default in complying with any provision of this paragraph, the public gas supplier may cut off the supply of gas to him and shall not be required to resume the supply until the default has been remedied to his reasonable satisfaction.

(6) A public gas supplier shall, as soon as is practicable after any person is first supplied with gas by him, give to that person notice of the effect of the preceding provisions of this paragraph; but this requirement shall not apply in the case of any person who is supplied with gas by the Corporation immediately before the appointed day, and to whom a notice has been given before that day pursuant to paragraph 18(6) of Schedule 4 to the 1972 Act (which imposes a similar requirement).

(7) A public gas supplier shall have power to disconnect, remove, test and replace any appliance which any person supplied with gas by him is required by this paragraph to keep in use, and any expenses incurred by the supplier under this sub-paragraph shall, if the appliance is found in proper order and repair, be paid by the supplier but otherwise shall be paid by that person.