sewage treatment solutions


When properly installed, operated and maintained Tricel Novo sewage treatment plants will give you many years of trouble-free service.

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Sewage Treatment Solutions

Sewage Treatment Plant Troubleshooting


Common sewage treatment plant problems:

For a full list of symptoms (such as alarm, odors, pump or blower) the possible causes and the corrective actions to take, please refer to the Sewage Treatment Plant Troubleshooting section on our manual (page 33 to 36). You can also see our infographic that gives an overview of the most common septic tank problems and how to deal with them.

  • Alarm

All plants come fitted with an alarm, and a buzzer will sound to alert of a fault in the air blower or discharge pump. The buzzer can be muted until the problem is fixed. Once fixed, the alarm will reset automatically and the mute switch must be turned off. All electrical work shall be carried out by a qualified person. Contact us if your alarm is buzzing.

  • Odors

Please note, before taking any corrective action, always positively identify the real source of the odor:

  1. Check if the odor is coming from another outside source such as a storm drain.
  2. All wastewater disposal plants vent gases back through soil pipe and out roof vents. Improperly installed roof vents can cause odor problems.
  3. Traps/U-bends in drains prevent odors from entering the home. To function they must contain water and be sealed correctly.

For any other request don’t hesitate to contact us directly.


Sewage Treatment Plant Troubleshooting

Regular maintenance

How to maintain a Tricel Novo?

The maintenance of the Tricel Novo sewage treatment plant is a simple process. An annual inspection is recommended to validate the proper functioning of the wastewater treatment system.

Please note:  maintenance should be carried out by a suitably trained person. Sewage and sewage effluent can carry micro-organisms and gases harmful to human health. Any person carrying out maintenance on the plant must be appropriately trained. Suitable protection equipment including gloves, goggles etc. should be worn at all times. Always remove contaminated clothing and protective equipment after completion of work. Wash hands and face prior to eating, drinking or smoking.

A certain amount of plant maintenance is required, on an ongoing basis to ensure that the plant is working correctly. This is the responsibility of the homeowner.

Regular maintenance can be done by the homeowner

The vent around the base of the blower housing guarantees a fresh supply of air to the air blower. The vent under the de-sludging cover allows gas to escape and stops the tank from becoming pressurised. All vents should be checked to make sure they are not blocked or obscured. Ensure the air blower is working by listening for a gentle hum when standing beside the plant. Inspect pipework for blockages if necessary.

​Yearly maintenance should be done by a qualified person

The Tricel Novo plant will require a full service every year to guarantee the efficiency of the plant is maintained. During routine servicing, the following items are checked (if applicable):

  • Sludge return
  • Functionality of blower and/or pump
  • Pump pressures
  • Pump filters are replaced
  • Pump Diaphragm
  • Alarm
  • Ventilation function tested
  • Diffuser monitored to check for dispersion of air
  • Tricel covers and locks
  • Manifold adjusted

Book your yearly service/maintenance.

De-sludging of Tricel Novo

The de-sludging of the Tricel Novo plant is the responsibility of the homeowner. It is required when the sludge is occupying 50% of the volume of the primary chamber. If de-sludging is required it should be done as soon as possible. For health and safety reasons, we strongly recommend the de-sludging to be done via the use of a licensed company.

Troubleshooting: ​A constant supply of electricity

An electrical connection to the wastewater treatment plant must be maintained for it to function correctly. This ensures that the plant has a continuous air supply and where necessary the discharge pump will operate.Should the plant be used intermittently or if extended periods of non-use are expected, it is recommended that the plant always remains on and in operation.

Sewage treatment plant troubleshooting: precautions to take

To ensure the continuation of the plant performance, we recommend taking the following precautions:

  • High volume discharges such, as those from swimming pools and Jacuzzi’s must never enter the plant. Surface water must not enter the plant.
  • Do not allow large quantities of chemicals to enter the plant including:
    • Water softener regenerate.
    • Disinfectants.
    • Strong Acids and Alkalis, or Photographic Chemicals.
    • Fat, Oil or Grease.
    • Petrol or diesel.
    • Pesticides.
    • Large quantities of milk, alcohol or food.
    • Large quantities of bleaches or cleaners.
    • Baby wipes, cosmetic and cleaning wipes.
    • Sanitary towels/Tampons.
    • Kitchen paper.
    • Nappies.
    • Medication.

To find out more, download Tricel Novo manual

Still unsure? Need advice? Discuss your project with us today! We’re here to help.

Key Features


Strong, durable, low profile shallow dig tanks

Fast delivery

UK manufactured ensuring short lead time


Our products are certified to EN12566-1 and EN12566-3

Get in touch

    Tricel Environment UK

    A trading brand of Dewey Waters Ltd.,
    Tricel Weston, Winterstoke Road, Weston-super-Mare, BS24 9AN, United Kingdom.
    Tel: +44 (0)1934 422 311