Marsh ENSIGN ULTRA Sewage Treatment Plant - 12 Person - 250mm Riser - 300mm AVR Unit

The Marsh ENSIGN ULTRA sewage treatment plant is designed for underground drainage applications, o...

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Product Information

Full details

The Marsh ENSIGN ULTRA sewage treatment plant is an ideal wastewater management solution for domestic or light commercial properties housing up to 12 people. Designed for underground installation, this high-performance system delivers a 97% pollutant removal rate, providing a reliable and environmentally conscious way to process sewage. While it offers exceptional durability and a 25-year structural guarantee, owners should note that the system requires professional installation and routine maintenance to maintain its regulatory compliance and optimal performance levels.

All features

ColourWhite
SeriesENSIGN ULTRA
Model Part NumberFA90WGW
BrandFreefoam

Extended Product Information

FAQs

How often does the system need to be emptied?

While the frequency depends on usage, a standard service interval for desludging is typically once every 12 to 24 months.

Does the system require a power supply?

Yes, the system uses an internal compressor that must be connected to a reliable electrical source to process the waste.

What is the warranty period?

The unit features a 25-year structural guarantee and a 2-year guarantee on the compressor unit.

Can this system handle detergents and cleaning agents?

Normal household detergents are generally fine, but avoid harsh chemicals, bleach, or non-biodegradable cleaners as these can harm the biological process.

What does the 250mm riser do?

The riser allows for deeper installation by providing an extension to the access hatch, ensuring the unit can be buried at the required depth.

Troubleshooting

Beacon alarm is flashing red

This indicates a potential mechanical fault or low pressure. Check the compressor to see if it is still running and contact a service engineer immediately.

Excessive noise from the unit

Ensure the 300mm AVR unit is securely mounted and not in contact with hard, resonant surfaces. If noise persists, the compressor may require a service.

Unpleasant odors around the installation

Check the vent pipe for blockages or consider extending the vent to improve airflow. If odors continue, the sludge levels may be too high and require professional emptying.

Pros and Cons

Pros

  • High-efficiency 97% pollutant removal rate
  • Substantial 25-year structural guarantee
  • Integrated alarm system for immediate fault detection
  • Acoustic vibration reduction unit included for quiet operation
  • Large capacity suitable for up to 12 occupants

Cons

  • Requires professional excavation and installation
  • Regular maintenance is necessary for optimal performance
  • Heavy unit requires mechanical lifting equipment during setup

Setup, Compatibility & Care

Installation must be performed by qualified professionals, as it requires specific excavation depths to accommodate the 250mm riser. The unit should be positioned in a location that allows for gravity-fed drainage while remaining accessible for periodic tanker emptying. Maintenance should include an annual inspection of the compressor and the air filter to prevent system blockages. Ensure the area above the installation is clear of heavy traffic or structures not rated for the weight capacity of the tank lid. Always verify with local building control that the installation meets site-specific requirements before commencing groundworks.

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