Sampling points, or sampling chambers, should be installed in the drainage line on the outlet side of septic tanks and wastewater treatment plants. This allows the necessary sampling to check the quality of the discharge from the system before it enters the watercourse.

The sampling of septic tanks and wastewater treatment plants is a requirement of all UK Water Authorities, and is included in the ‘consent to discharge’ issued by the Environment Agency.

Building Regulations H2 1.23 states: ‘The inlet and outlet pipes of a septic tank should be provided with access for sampling and inspection’.

The inlet of the sampling chamber must be a minimum of 150mm up from the base of the chamber to facilitate a sampling vessel/cup and the outlet must be at the base of the chamber. Also, the internal diameter should be a minimum of 300mm to again allow access for a sampling vessel/cup.

The Accesso Sampling Chamber enables simple access for inspection of the final effluent quality, either visually or by direct sampling.

The chamber is lightweight but extremely robust, manufactured from plastic twinwall, which can be installed in a granular surround. It is also anti-corrosive and the inlet grommet is supplied separately to be installed as required to suit levels on site.

For further information please visit our Accesso page.

For all enquiries on our Accesso Sampling Chamber, get in touch with our Sales and Technical team via email at  or call us on 0191 303 6315.

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