Sewage Treatment Plant Installation in Norfolk – National Trust

Sewage treatment plants offer Norfolk homeowners with a modern alternative to septic tank systems for areas not serviced by mains drainage. As leading independent installers and service providers for sewage treatment plants in Norfolk, Mantair is ideally placed to provide Norfolk homeowners with a sewage treatment plant to meet their site requirements, or provide the expertise required for assessing septic tank problems.

sewage treatment plant norfolk

Burnham Overy Tower Windmill in Norfolk was built in 1816 for Edmund Savory, a miller who was running a watermill on the River Burn known as the Lower Mill.  Savory worked this mill in Norfolk until his death on 9th February 1827, when it passed to his son John.  The mill was given to the National Trust in 1958 and has been converted to holiday accommodation.

The National Trust contacted Mantair with a view to installing a domestic sewage treatment plant to solve the septic tank problems at the property.  The project included the design and installation of an appropriate packaged sewage treatment plant with pumped outlet to facilitate the foul water drainage on site.  Prior to the design element of the project, Mantair carried out a full site investigation including a detailed survey of the existing drainage and underground services.

On sizing the new sewage treatment plant it was necessary to install an 18 population equivalent Tricel treatment plant to cope with the flow and strength of sewage the system would receive.

sewage treatment plant norfolk installseptic-tank-problems-norfolksewage-treatment-plants-norfolk

During the design stages of the project, Mantair liaised with the Environment Agency to determine the point of discharge for the overflow from the system.  Due to site levels it was necessary to have a pumped outlet on the Tricel sewage treatment system to enable the treated effluent to be discharged to the agreed outlet point.  With the sewage treatment plant having an integral pump Mantair installed a high level alarm and beacon with back-up battery to provide instant warning of power failure.

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 scope of the installation works included:
  • Exposing the existing foul drainage pipework and installation of new drainage to the Tricel sewage treatment plant;
  • Complete installation of the Tricel treatment plant in a suitably sized excavation and backfill;
  • Installing a MEDO air blower within an existing outbuilding and provision of an RCD protected power supply;
  • Installation of the air main from the MEDO air blower to the Tricel sewage treatment plant;
  • Installation of the pumping main from the Tricel system to the point of discharge, including for the installation of an inspection chamber.

On completion of the ancillary works, we commissioned the Tricel sewage treatment plant, including setting of air valves, checking all pipe work joints and viewing the discharge into the final discharge 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 septic tank and sewage treatment plant service throughout Norfolk. This includes free site inspections, guidance and advice on the most suitable system for our client’s requirements, complete installation, commissioning and full after sales care.

If you would like a Mantair engineer to visit you please fill out the form below or contact us on 01255 476467.

 

Septic Tank Problem – Cromer Lodge, Felbrigg, Norfolk.

Part of the former Gate Lodge to Felbrigg Hall, Cromer Lodge is a quirky, cosy cottage situated at the entrance to Felbrigg Hall Estate in Norfolk.  Guests staying at Cromer Lodge enjoy easy access to park and woodland walks through Felbrigg Estate, whilst the Norfolk town of Cromer is only ten minutes drive away.

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Whilst surveying several drainage systems at Felbrigg Estate for the National Trust, Mantair engineers identified that the septic tank serving Cromer Lodge was in need of replacement.  The results of the septic tank survey identified the soakaway system connected to the existing septic tank was functioning correctly, allowing the discharged effluent from the septic tank to percolate into the sub strata.

Cromer Lodge is a National Trust Holiday Cottage for persons visiting Norfolk on holiday and as such the variations in flow can alter dependent from high to low seasons.  In view of this and the ground conditions being suitable for a soakaway system, Mantair recommended that a septic tank would be more suitable than a sewage treatment plant.  Sewage treatment plants can be susceptible to variations in flow.

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With the soakaway system functioning effectively and the cause of the problem being with the septic tank itself, Mantair engineers recommended that the only remedial works required would be replacing the existing failed septic tank with a modern septic tank.

With Cromer Lodge being a Holiday Cottage it was essential that all works were carried out and completed during a period when no guests were staying at the cottage.  This septic tank installation in Norfolk was carried out and completed over a period of only two days, ensuring no holiday bookings were affected.

Prior to any works commencing Mantair engineers scanned the proposed location of the new septic tank to ensure that no underground services were present.

The septic tank was delivered to Cromer Lodge using one of Mantair’s delivery vehicles after it had been inspected at Mantair’s head offices in Essex.  All septic tanks and sewage treatment plants Mantair provides are inspected prior to approval for delivery.

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The scope of the works included:

  • Exposing the existing foul drainage pipe work and installation of new drainage to the location of the new septic tank system;
  • Excavation of suitably sized hole in preparation for the installation of the septic tank;
  • Installation of the septic tank, including for a concrete surround;
  • Installing a new discharge drain from the septic tank to the existing soakaway system;
  • Emptying and filling-in of the old septic tank system;
  • Removal from site of all surplus excavated areas;
  • Backfilling all excavations and leaving the area neat and tidy.

On completion of the ancillary works Mantair commissioned the septic tank system and removed all machinery from site, leaving the garden area in a neat and tidy manner.

Mantair provides a comprehensive septic tank and sewage treatment plant service throughout Norfolk. This includes free site inspections, guidance and advice on the most suitable system for our client’s requirements, complete installation and full after sales care for both septic tanks and sewage treatment plants throughout Norfolk and East Anglia.

If you would like a Mantair engineer to visit you please fill out the form below or contact us on 01255 476467.

Sewage Treatment Plant Installation in Suffolk – National Trust

Sewage treatment plants offer Suffolk homeowners with a modern alternative to septic tank systems for areas not serviced by mains drainage. As leading independent installers and service providers for sewage treatment plants in Suffolk, Mantair is ideally placed to provide Suffolk homeowners with a sewage treatment plant to meet their site requirements, or provide the expertise required for assessing septic tank problems.

national trust mantair

Located on the National Trust’s Ickworth Estate near Bury St Edmunds in Suffolk, in an area of outstanding beauty is “The Roundhouse”.  After the renovation of the property Mantair were appointed by the National Trust as the preferred contractor to provide a design, installation and commissioning service for the upgrading of an ageing septic tank serving the property.

Mantair engineers carried out a detailed survey of the location to determine the ground conditions of the site and to evaluate the position of underground services.  The results of a Percolation Test showed the sub-strata to be impermeable and that a replacement septic tank soakaway system would not operate effectively.

After considering all the various options for foul drainage disposal and the size of the property, Mantair recommended the installation of a six – person sewage treatment plant with a discharge direct to a nearby watercourse.  It was important that the chosen treatment system was installed below ground to ensure there was no visual impact on the properties surroundings.

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As part of the project Mantair 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 watercourse.

Taking into account all of the site requirements, Mantair recommended the installation a Tricel sewage treatment plant with MEDO air blower.

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 Tricel sewage treatment plant;
  • Installation of the Tricel sewage treatment plant in a suitably sized excavation and back-fill;
  • Locating the air blower within a Beehive blower housing – a purpose built housing designed to blend into the natural surroundings;
  • Provision of an RCD protected power supply to the Beehive housing;
  • Installation of the air main from the air blower to the Tricel sewage treatment plant;
  • Installation of a new 110mm diameter discharge drain to the receiving watercourse, including for the installation of a headwall;
  • Backfilling all excavations and leaving the area neat and tidy.

On completion of the ancillary works Mantair commissioned the Tricel sewage treatment plant, including setting of air valves, checking all pipe work joints and viewing the discharge into the final discharge chamber.

After all works were completed at this Suffolk location, Mantair provided the National Trust with a Maintenance Agreement providing a full after care service for the newly installed sewage treatment plant.

Mantair provides a comprehensive septic tank and sewage treatment plant service throughout Suffolk. This includes free site inspections, guidance and advice on the most suitable system for our client’s requirements, complete installation, commissioning and full after sales care.

If you would like a Mantair engineer to visit you please fill out the form below or contact us on 01255 476467.

 

Sewage Treatment Plant Installation Arrington, Cambridgeshire.

Located on the delightful Wimpole Estate in South Cambridgeshire is Rectory Bungalow.  After the renovation of the property in 2012, Mantair were appointed by the National Trust as the preferred contractor to provide a design, installation and commissioning service for the upgrading of an ageing septic tank serving the property.

Survey & Design

On viewing the drainage layout of the property it was found that the existing septic tank was located close to a willow tree.  On inspection of the septic tank it was found that the tank had substantial root ingress which had resulted in the structural integrity of the tank being impaired.  It was therefore necessary to provide a sewage treatment solution that would require the installation of a new tank.

A detailed survey was carried which included a Percolation Test.  The results of the Percolation Test showed that the sub-strata was impermeable and that a replacement septic tank soakaway system would not operate effectively.

After considering all the various options for foul drainage disposal and the size of the property, Mantair recommended the installation of six person sewage treatment plant with a discharge direct to a nearby watercourse.  It was important that the chosen sewage treatment sewage treatment plant was installed below ground to ensure there was no visual impact on the properties surroundings.

As part of the project Mantair liaised with the Environment Agency and the local Building Control Department to obtain the relevant approvals for the installation and the discharge to the nearby watercourse.

Installation

Prior to any ancillary works commencing Mantair engineers scanned the proposed location of the new sewage treatment plant and areas where any excavations were taking place to ensure that no underground services were present.

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The scope of the installation works included:

  • Exposing the existing foul drainage pipe work and diverting to the location of the new sewage treatment plant;
  • Installation of the sewage treatment plant in a suitably sized excavation, including for a concrete base and backfill;
  • Provision of an RCD protected power supply to the sewage treatment plant installation;
  • Installation of a new 110mm diameter discharge drain to the boundary ditch;
  • De-commissioning of the failed septic tank;
  • Backfilling all excavations and leaving the area neat and tidy.
Commissioning

On completion of the ancillary works Mantair commissioned the new sewage treatment plant, including setting of air valves, checking all pipe work joints and viewing the discharge into the final discharge chamber.

All machinery was removed from site with the garden being left in a neat and tidy manner.

If you require assistance with a septic tank problem in Cambridgeshire or have a requirement for a new sewage treatment plant or septic tank, call our team today to receive a free site visit.

 

Septic Tank Upgrade – Mill Cottage, Blickling, Norfolk

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Located on the delightful Blickling Estate in North Norfolk is Mill Cottage, a three bedroomed house on the banks of the river Bure, adjacent to the now redundant Blickling Mill buildings and race.  After the renovation of the property Mantair were appointed as the preferred contractor to provide a design, installation and commissioning service for the upgrading of an ageing septic tank.

On inspection of the existing septic tank it was found that the tank did not have enough capacity to enable the installation of a Mantair septic tank conversion unit.  It was therefore necessary to provide a treatment solution that involved the installation of a new tank.

With the property being on the banks of the river Bure, the natural water table in the ground is only 2ft below ground level.  With the natural water table being this high a new soakaway system would not function and it was therefore decided to install a sewage treatment system which would allow the overflow to be discharged into the river Bure.

septic tank upgrade norfolk River Bure Norfolk

When considering all of the sewage treatment plants available for a site such, Mantair identified that the Puraflo Peat sewage treatment system provided the best economical and efficient solution to overcome the drainage issues at the property.  Unlike other sewage treatment plants the Puraflo Peat sewage treatment system does not require the installation of a deep underground tank as the system is installed partially above ground reducing the excavation depth to a minimum.

It is however, necessary to have a septic tank ahead of the Puraflo system to trap solids and floating matter.  With this in mind, it was decided to utilise the existing septic tank and install a pumping station after the tank.  The liquids discharged from the septic tank would drain into the new pumping station and be pumped to the Puraflo sewage treatment plant.

At the heart of the Puraflo sewage treatment system is the Peat Bio Filter, an efficient filter that is made from 100% natural resources.  A combination of biological and chemical processes inherent in natural peat treats the receiving wastewater from septic tank and filters it through the bio-fibrous peat modules.  The resulting treated effluent is clean enough for discharge direct into the river.

As part of the project Mantair liaised with the Environment Agency and the local CNC Building Control to obtain the relevant approvals for the installation and the discharge into the river Bure.

Mantair engineers not only installed and commissioned the Puraflo sewage treatment plant with minimal disturbance, but have also provided a full after care service including planned maintenance visits.

If you require assistance with a septic tank problem or have a requirement for a new sewage treatment plant or septic tank, call our team today to receive a free site visit.

 

Orford Ness Nature Reserve, Suffolk – Sewage Treatment Plant Installation.

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Orford Ness is a 10 mile shingle spit of land off the Suffolk coastline and is separated from the mainland by the River Ore.  Orford Ness is the largest vegetated shingle spit in Europe and is both a Site of Special Scientific Interest (SSSI) and is also a RAMSAR Site.

Top secret military testing was carried out at this designated Outstanding Area of Natural Beauty during both World Wars and Orford Ness was home to both the Ministry of Defence’s Experimental Flying Research Station, and after World War 2, the Atomic Weapons Research Establishment.

Orford Ness in Suffolk is now owned by the National Trust and is open to the public for parts of the year.  Due to an ineffective septic tank soakaway system serving the waste water facilities on the Ness, the National Trust asked Mantair to investigate and provide a solution to the problem, taking into account the wide variation in waste water flow between winter and summer months.

Prior to the design element of the project, Mantair carried out a full site investigation including a detailed land survey for unexploded ammunitions and underground services.  Following the various preliminary site surveys, Mantair liaised with the Environment Agency, English Nature and Suffolk Coastal District Council regarding the project to determine an acceptable wastewater treatment solution.

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Taking into account that Orford Ness is an internationally important site for nature conservation, the Environment Agency and English Nature accepted Mantair’s waste water treatment proposal which comprised two sewage treatment systems and a flow splitting chamber which allows the flow to be diverted to either of the two systems.  For low season during winter, a Mantair septic tank conversion system was fitted within the existing septic tank, converting the tank into a fully functioning sewage treatment plant.  In summer the Ness is open to the public and the waste water flow increases substantially.  A 42PE Tricel packaged sewage treatment plant was installed to cater for the increase in flow during summer.

The Orford Ness project in Suffolk posed significant challenges to Mantair engineers as there is still dangerous debris buried on the Ness, including bombs, and the only access onto Orford Ness is from Aldeburgh along shingle beach on a Unimog vehicle, or from Orford Quay on a landing craft.  Timing was also crucial on the project as the water table on the Ness is affected by the tide and all excavations had to be carried out within a certain time frame.

Despite the complexity of the Orford Ness project, the pre-planning and experience of the Mantair engineers ensured that the project was completed efficiently and without any problems.

If you require assistance with a septic tank problem or have a requirement for a new sewage treatment plant or septic tank, call our team today to receive a free site visit on 01255 476467.