After purchasing a property on the outskirts of Norwich the new homeowners contacted us regarding a septic tank failure. The homeowners were made aware of the septic tank failure only two weeks after moving into their new home when the septic tank flooded.
Although the issues surrounding the septic tank were raised by the surveyor prior to the purchase of the property, the vendors didn’t appreciate the extent of the septic tank failure. After carrying-out a detailed survey of the foul drainage system, it was identified that the soakaway connected to the septic tank had failed, thus causing the septic tank to surcharge. With there being insufficient land available to construct a new soakaway the only solution available was to install a sewage treatment plant, with the treated effluent being discharged to a nearby ditch.
When sizing sewage treatment plants the British Water Flows and Loads Code of Practice should be used. With this property having four bedrooms it was necessary for a six-person system to be installed – number of bedrooms + two.
After discussing the homeowners preferences and taking into account the site conditions, Mantair engineers recommended the installation of a Clearwater sewage treatment system. The Clearwater system uses a three stage treatment process which incorporates a biological filter, and provides an economical solution for septic tank failures.
As part of the project we liaised with the Environment Agency and the local Building Control Department to obtain the relevant approvals for the installation of the sewage treatment plant and the discharge to the nearby ditch.
As with all underground septic tank and sewage treatment plant installations Mantair carries out, the tank was completely encased in concrete to ensure the structural integrity of the tank is not impaired and to prevent the potential of flotation of the tank.
The installation of the sewage treatment plant included:
- Exposing the existing foul drainage pipe work and diverting to the location of the new Clear sewage treatment system;
- Installation of the Clearwater system in a suitably sized excavation and back-fill;
- Locating the air blower within a remote blower housing;
- Provision of an RCD protected power supply to the blower housing;
- Installation of a new outlet pipe to the nearby ditch, including for the installation of a headwall and inspection chamber;
- Backfilling all excavations and leaving the area neat and tidy;
- De-commissioning and filling – in of the failed septic tank.
On completion of the ancillary works Mantair commissioned the Clearwater sewage treatment plant, including setting of air valves, checking all pipe work joints and viewing the discharge into the final inspection chamber.
If you have a septic tank failure and require professional advice or guidance, please do not hesitate to contact us on 01255 476467, or complete the form below.
When the owners of a property in the rural hamlet of Depden Green near Bury St Edmunds in Suffolk needed a new sewage treatment plant, they called on the expertise of Mantair to provide an economical and reliable sewage treatment solution.
As Suffolk’s leading installer of sewage treatment plants, Mantair has installed waste water treatment solutions throughout the majority of villages and hamlets around Bury St Edmunds, including various installations on the National Trust’s Ickworth Estate.
At this Suffolk dwelling the existing septic tank system had failed, causing the drainage from the property to surcharge, leaving the homeowners with the expense of having their septic tank emptied on a weekly basis. It was the homeowners preference to have the existing tank replaced with a modern sewage treatment plant.
With the property having three bedrooms, Mantair engineers recommended in accordance with the British Water ‘Flows and Loads’ Code of Practice – 4, the installation of a six-person Clearwater sewage treatment plant. The effluent produced from the Clearwater system is clean enough to discharge directly into a natural watercourse. It was therefore agreed that the treated effluent would discharge into a boundary ditch.
Due to the receiving ditch not being maintained for several years it was necessary for the ditch to be graded prior to the installation of the Clearwater sewage treatment plant. Using ‘euro-mats’, Mantair engineers constructed a temporary protective pathway in the garden to ensure that the required machinery wouldn’t cause any damage to the lawn.
After the works on the boundary ditch were complete, Mantair engineers started on the installation of the sewage treatment plant. As with all underground septic tank and sewage treatment plant installations Mantair carries out, the tank was completely encased in concrete to ensure the structural integrity of the tank is not impaired and to prevent the potential of flotation.
Scope of the installation works included:
- Exposing the existing foul drainage pipework and installation of new drainage to the Clearwater sewage treatment plant;
- Complete installation of the Clearwater treatment plant in a suitably sized excavation and back-fill;
- Installation of the Secoh air blower within a remote blower housing and provision of an RCD protected power supply;
- Installation of the air main from the blower housing to the Clearwater sewage treatment plant;
- Installation of the pumping main from the Clearwater system to the boundary ditch, including for the installation of an inspection chamber.
On completion of the ancillary works, the Clearwater sewage treatment plant was commissioned including the setting of the air control valve and viewing the discharge into the final inspection chamber.
During the project Mantair engineers took all the necessary measures to ensure minimal disruption to the property and its surroundings.
Mantair provides a comprehensive sewage treatment plant installation service in Suffolk and East Anglia. This includes free site inspections, guidance and advice on the most suitable system for our client’s requirements, complete installation and full after care service.
If you would like a Mantair engineer to visit you please fill out the form below or contact us on 01255 476467.
Septic tank problems were identified at this property in Hertfordshire after the homeowner was informed about the septic tank flooding during a routine emptying. Mantair were recommended to the homeowner by a family member to solve the septic tank problems.
After conducting a survey of the existing drainage arrangements it was found that the septic tank problems at this property in Hertfordshire were mainly due to the age of the septic tank and soakaway. Mantair engineers recommended replacing the failed septic tank with a modern sewage treatment plant.
Based on the property having four bedrooms and in accordance with the British Water Flows and Loads Code of Practice, a six-person Clearwater sewage treatment plant was installed.
The Clearwater plant is a ‘single tank’ system using a Biological Filter Process. Within the Clearwater system there are three treatment zones. Within the primary zone coarse solids are filtered and retained for gradual breakdown, whilst the resulting liquid is continuously distributed over a plastic biological suspended filter by an integral airlift, powered by a remote air blower. The biological filter is designed to promote the growth of aerobic micro-organisms which ‘treat’ the liquids. Within the final settlement zone fine solids settle to the floor leaving the resulting liquids as the treated final effluent.
The level of treatment within the Clearwater system is far superior to that of a septic tank and complies with the requirements of the Environment Agency for discharge direct to a natural watercourse.
On completion of the ancillary works Mantair engineers commissioned the Clearwater sewage treatment plant, including setting of air valves, checking all pipe work joints and viewing the discharge into the final discharge chamber.
We removed all machinery from site and left the grounds in a neat and tidy manner.
If you require the installation of a sewage treatment plant or merely require advice over the telephone regarding septic tank problems in Hertfordshire, please contact us on 0800 121 6786, or fill out the form below.