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Septic tank emptying tanker 1 Septic tank emptying tanker 2 Septic tank emptying tanker 3 
We operate a comprehensive fleet of vacuum vehicles to service a broad spectrum of waste removal requirements.
For deep shaft excavations our super suction tankers provide an excellent solution with 8" suction hoses to cope with large debris.

Tardis Environmental can provide services including emptying / gully cleaning to septic tank emptying, nationwide 7 days a week.

Jet Vac Tankers

Suitable for drain cleansing and drainage unblocking:
18 Ton High Vol Jet Vac 26 tonne hi vol thumb
Click any thumbnail to review / download the specification

Conventional Vacuum Tankers

Suitable for above ground and surface level septic tanks, cess tanks, toilet block tanks.

Conventional vacuum tankers are not suitable for deep chambers (deeper than 5 metres) or thick sludges.

Tardis Wet Waste Tanker
17 Ton Wet Waste Tanker 26 Ton Pressure Washer Tanker
26 Ton Wash Down Tanker Crossrail 32 Ton Washdown Tanker Crossrail
32 Ton Washdown Tanker Jul 16 32 Ton Waste Tanker Only Jul 16
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the spec sheet

Specialist Tankers

We have added specialist machines to our fleet, including our 26 tonne kilo whale and our 32 tonne liquid ring. These tankers are ideal for removing thicker sludge and getting a deeper lift for waste. 

26 Ton Kilowhale 32 Ton Liquid Ring Jul 16

                                                 Click any thumbnail to review or download 
                                                                      the spec sheet

Click here to view our Waste Carriers License

Call our 24/7 hotline for your quotation for any liquid, wet waste or sewage removal and disposal
or enquire on our contact us page

Free Phone: 0800 731 0589

Tardis wet waste management services include:         
  • Septic tank emptying
  • Cesspit emptying 
  • Industrial sludge removal      
  • Grease trap desludging     
  • Water delivery to sites      
  • Manholes emptied   
  • Oil & water removal    
  • Welfare units serviced      
  • Safe & correct waste disposal      
  • Fully licensed waste carrier
  • High pressure jetting
  • CCTV drainage surveys
  • Confined space works
  • Septic tank hire  
  • 24 hour emergency call out

Nationwide coverage for septic tank emptying, cesspool and cesspit emptyingwet wells manholes or large interceptors.

Tardis Septic Vacuum Tanker

Tardis septic tanker filling times

Filling time is dependent on 4 factors:-
  1. Vacuum in tank - Dependent on quality of pump.
  2. Depth from which sucking load.
  3. Fluid properties of load - Water/Sewage/Blood
  4. Pipe diameter
Septic tanker filling time 1

If loading water from a surface lagoon with 28in HG vacuum the best performance that can be expected is:-
Loading Times
 1000 galls  2000 galls
*3" dia hose 145 galls/min 7 mins 14 mins 
4"  dia hose 260 galls/min 4 mins 8 mins
5"  dia hose 405 galls/min 2.5 mins  5 mins
6"  dia hose 583 galls/min 1.7 mins 3.5 mins

* Tardis tankers carry 3" dia hose
Tardis tankers use 3" hose to carry out wet waste removal. We can also provide bigger diameter hose on request.  Call our sales team on 0800 731 0589.

1" of HG Vac = 1 foot of lift (filling)
1 PSI of pressure = 2 foot of lift (discharge)

Tanker loading

Septic tanker filling time 2

Vacuum Requirements for solid column lifting

Liquid  "A"  is water with specific weight of 10.0 Lbs/Gal
Liquid  "B"  is sludge liquid with specific weight of 12.0 Llbs/Gal
Liquid  "C"  is sludge liquid with specific weight of 15.0 Llbs/Gal

The vacuum requirements shown are for lifting liquids "A", "B", or "C" the designated height in feet. These liquids are given as an example. Vacuum requirements for other liquids will depend on their specific weights.

Vacuum tankers

Performance limitations

Once there is a vacuum showing on the gauge then loading of the tanker can begin. The speed at which the liquid load flows into the tanker is largely dependent on the following five factors.
  1. The Amount of vacuum in the tank.
  2. The diameter of the loading pipes.
  3. The viscosity of the load.
  4. The density of the load.
  5. The depth from which the load is being drawn
The effective limit on vacuum loading is generally about 8 metres vertically down from the valve at the rear of the tanker to the surface of the liquid being removed. Depths slightly in excess of 8 metres can be tackled if the hose and is alternately pushed in and out of the liquid. This has the effect of reducing the column of liquid in the loading pipe to a series of slugs of liquid separated by pockets of air which aids the lifting effect of the vacuum.

Because the flow rate is proportional to the cross sectional area of the loading pipe the best loading rates are achievable with a full vacuum and a free flowing liquid with a density similar to that of water will be:-

For 3 " (75-80mm) hose it will load at up to 140 gallons/minute (650ltr/min) 
For 4 " (100mm) hose it will load at up to 250 gallons/minute (1150ltr/min)
For 6 " (150mm) hose it will load at up to 550 gallons/minute (2500ltr/min)

For a typical 2000 gallon tanker -
3" hose could load in 15 minutes, 4" hose could load in 8 minutes and 6" hose could load in 4 minutes.

Tanker 7 Metres

Diagram showing the maximum depth to the surface of the liquid that can be removed or simply. 1inHg will lift water approximately 1 foot in height. (3inHg - 1mtr)