Call our friendly team now for expert advice on 01388 537 050

A Brand You Can Trust

Over 25 years experience in waste water & sewage treatment.

Best Prices Guaranteed

If you find the same product cheaper elsewhere, we'll match it.

Same Day Dispatch

On all parts orders placed before 4pm when items are in stock.

Buy With Confidence

Direct Drainage are an authorised reseller for major manufacturers.

Clearwater NSG01 Grease Trap 500L (40 covers per day)

Secure Payment

Multiple payment gateways for fast secure checkout.

Best Price Guarantee

If you find the same product cheaper elsewhere, we'll match it.

Direct Drainage Reviews

 The Clearwater NSG Range of Grease Separators guarantee effective and hygienic separation of fat and grease from your wastewater flow. This system is a high-performance model, perfect for businesses such as hotels, public houses and restaurants that need to maximise their operational efficiency.

  • Protects your main drainage system from costly grease blockages.
  • Easy to install
  • Available in 8 different specifications. 


Clearwater NSG01 Grease Trap 500L Drawing

Clearwater Grease Trap Installation Guidelines


Grease traps are an effective way of protecting drainage systems from grease blockages. It is a requirement under the UK Water Industry to ensure that your commercial premises does not discharge any product into the drain which may interfere with its operation. Drainage serving kitchens in commercial hot food premises should be fitted a BS EN 1825-1:2004 compliant grease separator which should be designed in accordance with BS EN 1825-2:2002 or other effective means of the removal of grease.


Each grease trap is sized based upon the facilities advised number of meals/ covers per day. The waste discharged into the unit are expected to come from dishwashing sinks, dishwashers and other kitchen wash sinks.


Please note: These separators are only suitable for below ground installation.


Features of the Clearwater NSG01 Grease Trap 500L 

  • Greatly reduces drain blockages for maximum operational efficiency
  • Helps improve performance of septic tanks and field drains for best discharge sample results
  • Manhole cover for easy access for maintenance
  • Proven performance in accordance with BS EN 1825-1 as required in the UK 
  • Protects mains drainage system from grease blockages
  • Easy to install
  • Fast delivery


Clearwater NSG01 Grease Trap 500L Specification

Model No: NSG01
Number of Covers per day: 40
Width of Unit (mm): 700
Length of Unit (mm): 1300
Capacity (litres): 500
Approx. Weight - Empty (kg): 70
Approx. Weight - Full (kg): 570
Shipping Height (mm): 1100
Fall Across Unit (mm): 75



  • Pubs / Hotel / B & Bs
  • Restaurants
  • Cafes / Fast Food outlets
  • Holiday Parks with Restaurants on site
  • Caravan/Camping Parks with Restaurants on site
  • Building sites with Welfare Facilities on site
  • Food manufacturing Plants
  • Industrial/Manufacturing sites with Canteen Facilities on site


Clearwater NSG01 Grease Trap 500L Options

Choose from a pedestrian duty cover or for trafficked areas choose a vehicular duty cover.


Product Code

With Pedestrian Duty Cover Product Code: NSG01031AK

With Vehicular Duty Cover Product Code: NSG01032AK

Equivalent to the Kingspan Klargester Grease Separators NSG01031AK and NSG01032AK



This product is delivered to the pavement. Access must be suitable for a large goods vehicle. It is the customers responsibility to provide suitable offloading facilities to offload this tank. If you need any assistance please contact us on 01388 537 050 or email for expert advice!

You may also like

Klargester Car Wash Silt Trap

Fast Delivery To Your Door

We process orders the same day so you can trust us to get your order to you without delay.