Our sewage treatment plants from Marsh are available in a wide range of configurations in order to suit underground drainage applications of all sizes. Marsh are one of the biggest producers of wastewater treatment and management systems all throughout the UK.Their ENCO line of treatment plants are known as a cost-effective option compared to the ENSIGN range or plants from other manufacturers, whilst still conforming to BSEN12566-3/A1:2009 requirements.This sewage treatment plant has a capacity of up to 6 people and features a 250mm riser. To reduce the risk of blockages and spillages, this plant is also fitted with a Marsh MA1 Beacon Alarm without A Pressure Switch which is triggered when the pressure inside the plant drops beneath the adequate level.Benefits of this productCompliant with BS EN12566-3 specification10-year structural guarantee2-year compressor guaranteeCost-effectiveFeatures stabilising feet for safe transportation and installationImpermeable lid for extra securityHuge selection of configuration options