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Drain and Sewer Cleaning

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We are a Harben dealer, selling a new release of a Stage 5 trailer jetter, based off the Harben ‘P’ type radial piston pump, Flowplant recently visited to demonstrate the new DTK Harben Trailer operating up to 275bar and 55lpm.

The trailer comes fitted with a Jump Jet system, making it easier to clean cable ducts at extended distances with it’s unique way of pulsing the desilting hose to reduce friction, along with being fitted with a high-pressure diaphragm.

We are proud to be offering the DTK Harben Trailer to our customers.


  • Suitable for drains up to 300mm
  • Ideal for unblocking, descaling & root cutting
  • 500 litre (110 gallon) plastic water tanks
  • Radio and Manual control options
  • Fast tow UK & EU compliant trailer



Model DTK 500 trailer
Pressure and Flow Up to 275 bar / Up to 55 litres per minute (4000 psi / 12 gpm)
Up to 350 bar / Up to 41 litres per minute (5000 psi / 9 gpm)
Up to 415 bar / Up to 32 litres per minute (6000 psi / 7 gpm)
Pump Harben® ‘P’ type radial piston diaphragm
Engine Stage 5 emission compliant water cooled diesel
Water Tank Twin interconnected water storage tanks with a total capacity of 500 litres (110 gallons)
Frame Box section steel shot blasted and powder coated
Hose Reel Variable-speed hydraulic-rewind hose reel with 120m high-pressure hose capacity
Dimensions 3290 mm long x 1690 mm wide x 1350 mm high *
Weight Dry weight from 1000kg dry or 1500kg full * (Plated weight is 1600 kgs)
Suggested Accessories – 1/2” Standard jetting hose – 90m (300ft)
– 3 x 1/2” Standard drain jets (3r, 3r1f & 6r)
– 1/2” Safety leader hose – 3m (10ft)
– 1/2” Drain jet extension – 9”
– Inlet hose reel


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When you need a self contained power pack or any other services to do with hydrodemolition, look no further than Hydroblast. We offer an unbeatable range of equipment and services, all from the convenient location of our Yorkshire base. Contact us today.