BS 8558 is a critical British Standard that provides detailed guidance on the systems used to supply water for domestic purposes inside buildings. While it is not a legally binding document in itself, it is widely regarded as the industry "code of practice" for ensuring water systems are safe, efficient, and compliant with UK Water Supply (Water Fittings) Regulations.
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The document includes specific technical tools to help engineers and installers: Annex A: Examples of pumped water systems. bs 8558 pdf
BS 8558 is British Standards guidance supporting the design, installation and maintenance of sustainable drainage systems (SuDS) and conventional surface water drainage for new developments. It interprets and expands on the principles in BS EN 752 and provides recommended good practice for planners, designers, contractors and maintainers.
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Key benefits of BS 8558
: Includes detailed schematic examples for direct and indirect vented hot water systems, as well as unvented systems. Installation An Overview of BS 8558: Guide to the
Underground Pipework: Unlike BS EN 806, this standard specifically covers underground pipes within a building's boundary (curtilage).
Eliminated dead legs to ensure every drop of water kept moving. BSI Shop (www