Frequently Asked Questions
Endura
- How do I know if my Endura is the correct size?
To ensure that the Endura Grease interceptor is sufficient to cope with the appliances being drained, it is important that it is sized correctly. The flow from kitchen appliances passing through the interceptor must not exceed 1.6 litres per second (DSG16) or 3.2 Litres per second (DSG32). A commercial dishwasher may have a discharge capacity greater than the capability of the interceptor. Therefore, you will need information from the dishwasher supplier to convert the water flow through your dishwashers to litres per second. Dividing the total amount of water discharged to the drain by the amount of seconds that it takes will do this.

- What size pipes should I use on my Endura?
The outlet pipe from the Interceptor to the drainage system must always be 110mm diameter whilst the inlet pipe from the appliance should be 50mm. Flexible connectors are supplied as standard with every Endura grease interceptor.

- What does the Influent Control Device do (ICD)?
The ICD is necessary to regulate the flow of influent (waste water and grease) and introduce air into the system to aid grease separation. The ICD is supplied as part of the Endura installation package and should be installed as close as possible to the sink/dishwasher that it serves. Full installation instructions are supplied with the Endura and provides a guide as to how it should be installed. N.B. Omitting the ICD unit will cause the Endura grease interceptor to be at least 40% less efficient.
The ICD should be installed between the last appliance and the grease interceptor. The Influent Control Device has a cleaning eye that should be checked at the end of the day and any food particles removed.

- What is Grease Digester?
To work efficiently The Endura Grease Interceptor requires biological additives to break down the grease. Hunter offers the Endura BioPak a programmable automated dosing unit, which injects a measured quantity of Bio-G liquid grease digester into the system at specified intervals. The unit is recommended but not compulsory. However, it is important that some type of degreasing agent is used, as without degreaser the interceptor will build-up with grease solids rapidly, which may result in blocked pipes. The 12.5 litre refill pack of Bio-G will last for approximately three months. Alternatively, BioPlus Granular Grease Digester can be introduced manually.
The Endura BioPlus granular digester must be added daily to be effective, it is introduced manually by pouring a rounded scoop of granules into the sink waste and then flushing this into the Grease interceptor with half a sink of warm water. This should be done at the end of each working day to allow the maximum amount of time for the digestor to take effect within the grease interceptor. A 4x1Kg pack of Bio Plus will last approximately four months and a scoop is supplied with each tub of granules.
Endra BioPlus and BioPak can be ordered through any Hunter Plastics stockist.

- Will my Endura need regular maintenance?
Your Endura grease interceptor will need routine periodic cleaning to remove any accumulated grease and food particles. Continuous and regular use of a grease digestor will significantly reduce the frequency of grease separator maintenance. When the unit requires cleaning, the lid should be removed and the grease scooped out and bagged-up ready for disposal by the local authority.
Unlike other Grease interceptors, Endura contains fully removable baffles which can be removed to aid deep-cleaning. Scoop-out the trapped water and clean the unit and baffles with a solution of hot soapy water. Replace the baffles and replenish the trap with water, the lid should then can be screwed back into position.
Hunter recommends that a regular planned maintenance schedule be instigated to ensure that the interceptor continues to operate efficiently.








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