How can I show that my underground pipe work complies with Regulation 6 (7) (b) ii?
The purpose of this section of the regulations is to discourage the use of mechanical joints in new underground pipe installations following some serious pollution incidents caused by corroded or damaged underground pipe work. The regulation does apply to existing underground pipe work. Existing oil firing systems should have been installed in accordance with the relevant sections of British Standard 5410 Part 1: Section 8.2.4 or Part 2 Section 38.2.4 which are site specific, or with OFTEC TI/134 Installing oil supply pipes underground. These standards stress the importance of laying pipes in accessible ducts where possible. If you cannot demonstrate that pipes have been installed in such a manner then further investigation may be needed, taking into account industry standard lengths of pipe work and the accessibility of the pipe.