Planning information only
SepticSpec provides general information and planning calculations. It is not engineering advice, legal advice, a site survey, a permit, a Building Control approval, an environmental authorisation or a manufacturer's design.
No site verification
The website cannot verify groundwater, geology, flood risk, protected habitats, sewer proximity, neighbouring discharges, site gradients, access, property drainage layout or the accuracy of your inputs. Those factors can make a calculated option unsuitable.
Check before you buy or build
Regulations, regulator guidance and site conditions can change the correct solution. Before ordering a tank, treatment plant or drainage-field materials, or starting excavation, confirm the current requirements with the relevant environmental regulator, local planning authority / Building Control and a competent drainage designer or installer.
For England, Environment Agency guidance also makes clear that meeting the General Binding Rules does not remove the need for other permissions, including appropriate Building Regulations approval and planning permission where necessary. Approved Documents themselves are guidance on ways to meet the Building Regulations; they are not an approval of a particular property or design.
British Standards
References to British Standards are provided to explain the basis and context of commonly used design methods. SepticSpec does not reproduce or distribute the standards themselves. Users should obtain the applicable standard from an authorised source where required.
Liability
To the fullest extent permitted by law, use of the site and reliance on planning estimates is at the user's own risk. Nothing in these terms excludes liability that cannot lawfully be excluded.