• Vacuum Tank
  • portable Vacuum Tank design
  • Vacuum Tank

Vacuum Tank, The Best Portable Septic Vacuum Tank on Trailer

  • 4.5mm SS304 Shell
  • 2000L, 3000L, 4000L and Custom Made Other Size
  • 100 Liter Per Minute Water Pump
  • Single or Double Axle Trailer
  • Full Complete Assembly in Factory

Your Reliable Partner and Vacuum Tank Manufacturer in China

Sunnyda offer a range of vacuum tanks completely self-contained and ready to use. We also carry a comprehensive list of parts and accessories of vacuum tanks in stock to keep you going.

With an 1300 litre waste tank and 700 litre fresh water tank, this vacuum tank is designed to fit a small truck so it can access those hard to get at areas or out of the way toilets. Vacuum tank can look after all those emergency situations without having to interrupt your regular scheduled route.

This unit can easily be loaded or unloaded by a small forklift. So that Sunnyda vacuum tank is perfect for septic system maintenance, portable toilet service and construction sites.

Weight410 kg
Dimensions1950mm(L) x 1380mm(W) x 1675mm(H)
Waste water tank capacity1140 L
Clean water tank capacity560 L
Delivery time15 days
Our ServiceEngineering-production-shipping-installation-warranty-after service support you develop your business
Sunnyda Support Your Business

Sunnyda Vacuum Tank

Sunnyda vacuum tank body material is stainless steel 304, with 100 litre minute water pump, primary and secondary moisture traps, 50” retractable water hose, oil catch muffler, work light, check and relief valves, vacuum and pressure gauge, 3” discharge valve, 2”x30” suction hose with wand assembly.

Sunnyda Vacuum tanks are typically measured in litres and can range greatly in size depending on their applications. The interior walls are smooth without grooves or imperfections, as they need to be thoroughly cleaned in between storing or processing. Vacuum tanks must be very corrosion resistant, our material stainless steel 304 is very good choice.

Pumps are used with vacuum tanks in order to create the pressure required to create a vacuum. Some pumps are small enough to be powered by a vehicle engine, while others require a larger, separately powered pump. Sunnyda 2000L vacuum tank with separate pump.

Sunnyda vacuum tank be full finished in factory and can be put to use once received it. Delivery is usually 15 days. You may customize the size as you wish, 2000L 3000L or 4000L is available.

We warmly welcome you to visit our factory while looking forward to cooperation in the near future.

Sunnyda is your premier vacuum tank manufacturer and supplier!


Vacuum Tank-An Ultimate Buying Guide by Sunnyda.

A Vacuum Tank is a machine that sucks the sludge and fecal content from one site and transports it to the leading waste-collecting site for further processing.

So mainly, it is used for cleaning and waste collecting purposes from mobile restroom trailers and portable toilets. This way you can make your portable toilet free of contaminants; ensuring a healthy environment for the users.

It transports liquid and waste content via road to a sewage treatment plant.

For a better result of using the Vacuum Tank, you necessarily have to maintain it internally as well as externally.

In this guide, we will present the specifications, applications, and benefits of the Vacuum Tank. Moreover, we will also give some cleaning and inspection tips and solutions for the Vacuum Tank. So let’s begin.


1.What is a Vacuum Tank?
2.How Does the Vacuum Tank Work?
3.What are the Construction Materials used in the Vacuum Tank?
4.What are the Specifications of a Vacuum Tank?
5.What are the Accessories that come with the Vacuum Tank?
6.How to Choose Between Aluminium vs Steel Vacuum Tank?
7.What are the Applications of the Vacuum Tank?
8.What are the Benefits of Using the Vacuum Tank?
9.What is the Sewage Vacuum Tank?
10.What Role Does a Vacuum Tank Play in Industries?
11.How to use a Vacuum Tank in Emergency Situations?
12.Can we use a Vacuum Tank for Environmental Protection in Case of Disaster?
13.How the Pump Plays the Role as a Vacuum Tank?
14.What is the Purpose of Using the Suction Hoses in the Vacuum Tank?
15.Why is Pressure Relief Valves Required for the Protection of a Vacuum Tank?
16.How to Choose the Right Vacuum Tank for your Job?
17.What are the Factors to Consider when Buying a Vacuum Tank?
18.How to Empty your Vacuum Tank?
19.What are the Cleaning Tips for your Vacuum Tank?
20.What is the Inspection Process for your Vacuum Tank?
21.How to Troubleshoot Common Issues of your Vacuum Tank?


1. What is a Vacuum Tank?

A Vacuum Tank is a portable unit that pumps waste from a mobile bathroom or a portable restroom. It mainly comprises a pump that creates suction for easy sucking of the content into the unit.

It is used at environmental, industrial, and emergency sites where mobile restroom trailers are placed, for septic and sewage system cleaning.

Different types of Vacuum Tanks are available in the market. The basic construction is the same, but your type of Vacuum Tank depends on the function you will be performing.

You can get your Vacuum Tank in steel, aluminum, or even stainless steel material, depending upon which one suits your requirements.

Mainly, it is used to take away septic or fecal sludge or sewage sludge from a mobile bathroom trailer or a luxury bathroom trailer.


2. How Does the Vacuum Tank Work?

Understanding the working of the Vacuum Tank is essential so that you can easily use it and deal if any problem occurs.

The presence of hoses with high pressure provides ease in the excavation process.

The negative air pressure is created using a pump, which enhances the vacuum’s suction capacity significantly. The more potent the pump, the vacuum’s suction will be stronger.


3. What are the Construction Materials used in the Vacuum Tank?

Some of the most common construction materials used in the manufacturing of the Vacuum Tank include the following.

  • Painted stainless steel
  • Aluminum
  • Steel
  • Simple stainless steel

All these materials are solid and reliable to be used in your Vacuum Tank. However, the choice of your material mainly depends on the application of your Vacuum Tank.

If you are using it for an easy job, you can use steel, but aluminum will be better for complex jobs.

Similarly, stainless steel will work best if you want to stay safe from corrosion and rusting problems.


4. What are the Specifications of a Vacuum Tank?

Some of the specifications of using the Vacuum Tank include the following.

  • The weight capacity ranges from 400 to 1000 gallons of water.
  • A removable steel cabinet protects the unit.
  • From 100 to 400 gallons of freshwater capacity is included.
  • Sufficient capacity of freshwater.
  • Slight glass indicators are present.
  • It has 300 to 700 gallons of wastewater capacity.
  • Backcheck valve and quick coupler are available.
  • An air filter is present.
  • The Vacuum Tank is powered by a 12-volt power supply.
  • The petrol engine has both recoil and electrical start options.
  • You may have an optional full opening back door.
  • Hydraulic door opening and closing.
  • Epoxy lining for internal protection of the Vacuum Tank.
  • A smooth and nice external finishing.
  • Bright lights in the unit for easy usage.
  • Vacuum pressure gauge
  • Various compartments for easier operation are included.
  • A rear hose holder is present.


5. What are the Accessories that Come with the Vacuum Tank?

Here are some accessories that come with your Vacuum Tank to make the operation easier, faster, and simpler.

  • Moveable vacuum work table for easy transportation
  • Extra storage box for organizing the equipment
  • Vapor trap for the pump protection
  • Additional lighting facility is available.
  • A ladder for entering into and out of the unit.


6. How to Choose Between Aluminum vs Steel Vacuum Tank?

Before deciding on aluminum or steel as the constructional material of your Vacuum Tank, you have to keep in mind the following factors.

An aluminum Vacuum Tank is lighter in weight. But it provides you with additional costs. Moreover, you have to pay extra time and money for the maintenance of the aluminum Vacuum Tank.

A steel Vacuum Tank is heavier in weight. It has longer life as compared to the aluminum Vacuum Tank. Moreover, the user gets faceless maintenance.

Now, you have three basic factors that include weight, life, and maintenance. Now based on these factors, you can easily decide which material suits you the best for the construction of your Vacuum Tank.


7. What are the Applications of the Vacuum Tank?

A Vacuum Tank is often used to disinfect septic tank networks and sewers in a mobile bathroom trailer. It eliminates accumulated sludge and build-up from the facility, allowing it to operate more smoothly and preventing backups and floods.

Additionally, it is used to empty portable toilets on construction projects and in the aviation sector. After that, the waste is properly disposed of in the sewer system.

Due to the special construction of the Vacuum Tank, it is capable of removing and storing potentially toxic waste.


8. What are the Benefits of Using the Vacuum Tank?

Here are some of the benefits of using the Vacuum Tank.

  • You can easily move it from one place to another.
  • All the accessories and essential equipment come with the product.
  • You will also get special vacuum bags for discarding the material.
  • It is durable due to the strong and sturdy construction material.
  • It is reliable for cleaning big septic systems.
  • You can easily remove water and solid waste materials.
  • It is applicable to various industrial and environmental sites wherever a portable toilet trailer is present.
  • It is a safe option for waste removal from any site.
  • You can get your job done in lesser time using it.
  • Using a Vacuum Tank is an affordable option.


9. What is the Sewage Vacuum Tank?

The Sewage Vacuum Tank services a variety of non-centralized sanitation networks.

It is used to drain cesspits, septic ponds, pit latrines, and public latrines, as well as to disinfect streets, sewers, and human septic systems.

It is also used to disinfect sewage pumping stations. It is being used in commercial aircraft as well to collect waste from airplane toilets.


10. What Role Does a Vacuum Tank Play in Industries?

A Vacuum Tank pumps the debris and sludge from different locations for ensuring a clean environment suitable for some drilling jobs or those requiring hydro excavation.

It is also used to remove liquids and debris from service lines of your mobile restroom trailer that need to be replaced or fixed.


11. How to use a Vacuum Tank in Emergency Situations?

We can use the Vacuum Tank for various purposes, especially to counterattack the adverse effects of rescue efforts and environmental disasters. It eliminates the oil spills or junk materials that can prove to be dangerous for the environment.

By suctioning harmful site sludge and water, it helps to protect people trapped in the mines.

In case of flooding of your homes, the Vacuum Tank can come in handy by eliminating the excess water from your house, reducing the risk of damage to your interior and exterior.


12. Can we use a Vacuum Tank for Environmental Protection in Case of Disaster?

A large-scale Vacuum Tank may be called in to protect sensitive areas and wildlife in case of any storm or even flood. It removes any residual liquids from the scene until they cause permanent harm.


13. How the Pump Plays the Role as a Vacuum Tank?

There are two ways to use the pump, and one is to power it by an independent motor, another one is to power it by the tank’s or truck’s main motor.

The pump suctions the sludge content from the negative as well as positive suction sides and transports it to a safer location where the sludge is further treated.

This way, the pump sucks the fecal content and sludge material like the Vacuum Tank.


14. What is the Purpose of Using the Suction Hoses in the Vacuum Tank?

A suction hose of approximately 50 meters in width is used in the Vacuum Tank. Usually, the suction pumps lift liquid based on the atmospheric pressure, and this thing works well for pure water only.

But when you have to deal with waste matter, you have to add air to the fecal content due to its higher viscosity. You may add the air by sucking the content closer to the surface or by using an air compressor.

Using this way, you can decrease the viscosity of the fecal sludge, thus contributing to a higher lift.

So, the main purpose of using the suction hoses in the Vacuum Tank is to decrease the density and viscosity of the sludge and to make its portability easier. Also, it helps a lot in dealing with pressure loss problems.


15. Why is Pressure Relief Valves Required for the Protection of a Vacuum Tank?

The pressure relief valves protect the Vacuum Tank in the following ways.

  • Saves money by retaining products.
  • Reduces evaporation pollution.
  • When properly sized, it prevents the Vacuum Tank from being over or under pressure.
  • It also provides fire protection while adhering to API requirements.
  • It decreases ambient corrosion in the unit.
  • Generally mandated by OSHA and the EPA.


16. How to Choose the Right Vacuum Tank for your Job?

There are some factors to remember before selecting a Vacuum Tank for your project. These involve the following:

  • Selecting between air and water excavation
  • The weight, capacity, and size of the Vacuum Tank
  • Chances of movement or portability on the construction site


17. What are the Factors to Consider when Buying a Vacuum Tank?

Capacity & Size

The most critical factor to consider is the Vacuum Tank capability and height. If the primary aim of your buying is for cleaning light and ease mess in your portable toilet trailer, then a lower-capacity tank will suffice.

This portable, lightweight unit is ideal for storing in a car or a home. Small Vacuum Tank normally has a tank size of two to six gallons. If you want one for vacuuming around your garage, a Vacuum Tank with 8 to 14 gallons capacity will be enough.


Constructional Material

The majority of them are constructed of robust plastic. This is one of the very common and widespread choices when buying a Vacuum Tank.

Plastic is a lighter-weight item, which allows it easier to transport in your house. Additionally, metal tanks are available. Metal is ideal for high-traffic places such as auto repair shops and building sites.



In general, the more horsepower it has, the greater the suction. To ensure that you have enough suction for every task, use the highest horsepower possible for the size you have chosen.



Placing is not a problem when you have sufficient space in your garage or tool shed for a Vacuum Tank.

However, whether you want to store it in a tiny basement closet or the corner of your laundry room, think how much space you would have.

Certain wall-mounted ones have wall brackets, which have an excellent space-saving option for consolidated cleaning.


Power Sources

It is driven by a variety of different sources. Some are equipped with power cables, making them ideal for in-home washing or time-consuming cleanup.

Others are battery-operated, which makes them ideal for small jobs and difficult-to-reach areas. A lengthy task will easily deplete the battery.


Accessories and Features

Vacuum Tank is available with a range of features and attachments. Among the features in the Vacuum Tank, you can find useful are an integrated liquid compressor, a blower, and a variety of hose lengths and widths.

Additionally, you can purchase filters that are hypoallergenic, cleaning brushes, unique filter containers, cartridge filters, and extension wands.


18. How to Empty your Vacuum Tank?

Typically, its cargo is unloaded through gravity. You can also pressurize your Vacuum Tank for enhancing the process of “pressuring out” the oil since this technique is dangerous to the machinery; it is only done under exceptional circumstances.

The normal discharge period for Vacuum Tank carrying 8–9 cubic meters (280–320 cu ft.) is around 5 for a 4000 liters capacity tanker.

Usually, the diameter of the outlet ranges around 4 to 6 inches.

The discharge period is determined by the sizing of the valves, the garbage proportion in the fecal content, and the pace at which the driver cleans the dump screen of the Vacuum Tank.


19. What are the Cleaning Tips for your Vacuum Tank?

Cleaning your Vacuum Tank is not only essential for health safety purposes but also plays a big part in the normal and effective operation of your unit.


Slurry Removal

The removal of slurry from the Vacuum Tank has proven to be complex and time-consuming. Through its superior suction and discharge pressure, the pump enables the removal of highly viscous slurry from its bottom.

Hydraulically operated, the pump is coupled to a power pack powered by petrol, electric, or gasoline motors.

At the lower surface of your Vacuum Tank, using a strong pump, you can increase the suction from the valve.

This straightforward link approach enables simple, rapid clean out with minimal planning and fewer access issues.

The chance of static electricity sparks is low due to the pump’s low rotational speed.

Additionally, the pump’s lesser rotational speed ensures good bonding because of the higher viscosity of the oil which you are pumping.


Sludge Nozzles

A handle and a swivel are included with the nozzle. When the nozzle is pushed, the hose will follow. The nozzle may be reversed using the swivel. Now, you can easily clean the nozzle of your Vacuum Tank.


20. What is the Inspection Process for your Vacuum Tank?


Check the gauges before opening the manways to ensure the Vacuum Tank is not under pressure. If this measure for Vacuum Tank is not taken, serious complications can occur.

While the majority of times, we manually operate the manways, sometimes mechanical and automatic operations are also available.

Check the gasket off it for wear when opening the manways. Looking for missing or dried-out chunks, as well as brittle O-rings.

As required, replace the gasket and O-rings. Now remove all the debris from the sealing edge of a steel Vacuum Tank manways with a wire brush to make a more airtight seal.

During the inspection, keep the manways open.


Primary and Secondary Valves

Sewage must never touch the pump when it is sucking vacuum of it.

The safety coupler is built to split and save the pump in case the primary, as well as secondary valves, fail to work and the sewage content starts entering the pump.

That is if you are fortunate. Vanes splitting in the pump or which we normally call the pump grenadation will be unlucky. When the vanes grenade, they not only crack but also blast out of the pump casing, scattering pieces all over the place of it.

This is a very dangerous and aggressive blast. These safety components that secure the pump of your Vacuum Tank should never be removed or bypassed.

The primary valve present at the upper surface of the Vacuum Tank near the front is typically held in place by five wing nuts.

You’ll clean and check the gasket like you would the manways and replace it if necessary. A steel or plastic ball is kept in an enclosure.

The construction of this ball is meant to stop the pump from sucking in the air if your Vacuum Tank is too full, as well as to keep sewage from getting into the pump and causing costly harm.

Ensure that you clean the cage and the ball in your Vacuum Tank isn’t dented. Cleaning wipes of it can get stuck here and trigger issues.



Some people want to use their pumps without a prefilter. The main shut-off valve, secondary shut-off valve, and pump are the most common configurations.

Sometimes, rust may enter the safety valve, and this way dirt and debris will accumulate in the pump.

A prefilter adds another layer of protection to the pump of your Vacuum Tank, keeping debris out. Remove the panel from your prefilter for hosing and make sure to include it in your daily maintenance.


Energy Free Vacuum Gauges

To clean out a Vacuum Tank, it is important to make vacuum gauges free from any sort of energy. For this, keep it in zero position or open the load valve so that the tank has no stored energy and pressure.


Vacuum and Pressure Gauges:

To keep a check on their performance, just check that if their glass is cleaned and they are not impaired by anything.


Check Baffles and Weld

When cleaning the baffles of your Vacuum Tank, make sure that you give sufficient time and attention to it. Always follow the given precautions properly while doing this task.

The first thing is to get into your Vacuum Tank to check the baffles and welds properly. Make sure that they are integrated and are not separated.

If the baffle is not secured properly, it can cause great problems in the overall construction of your unit.

Baffles play an important part in strengthening your Vacuum Tank when it is under the action of vacuum forces.

After the Vacuum Tank inspection, close all manways and valves. Switch on the pump and inflate the reservoir. Check for leakage and re-seal if required.

Verify the valves for pressure and vacuum relieving are operating at the manufacturer’s recommended settings. Restart the pump and ensure that the oilers are operating properly.

Switch off the pump and place the three-way valve in neutral. Verify that the gauges are free of any pressure or vacuum. Ascertain that the valve works freely and without requiring undue force to run.

Additionally, check for leakage and tighten if required. In cold areas, the Vacuum Tank comprises heated valves. An engine coolant is used for heating these valves.

Inspect measures and handholds for signs of cracking at welded points. Additionally, ensure the anti-slip surfaces are gripping. Examine piping joints for symptoms of cracks and leaking from the reservoir to the pump.

Make sure that you check all the valves and also don’t forget to inspect the exhaust.


21. How to Troubleshoot Common Issues of your Vacuum Tank?

Vacuum Debris Hose

Vacuum Tank hoses may get clogged with debris at any time. Massive strong structures will block the hose and render it inoperable. You may attempt to remove the barrier by opening the hose’s door.

Additionally, its hose can be corroded by chemicals, causing it to leak. Leaks in your Vacuum Tank must be repaired instantly upon detection.

Additionally, routine tank washing can help deter toxic or corrosive particles from adhering to and accumulating in the hose. You can spin it 180 degrees, 90 degrees, or end-over-end to extend the life of the hose.


Ball Valves

Jerky or sticky operation is a common issue with ball valves in your Vacuum Tank. One possibility is that the actuator is misaligned. When anyone bumps or steps on the valve, a side load is created on the stem, which may result in leaks in the Vacuum Tank.

To correct this problem in your Vacuum Tank, disassemble the valve or actuator and visually inspect the shaft. If the valve is twisted or destroyed, it must be replaced. Lubricate the moving surfaces of the valve stem, whether it is slick or jerky.


22. Conclusion

Make sure you gather all the information about the Vacuum Tank before purchasing it. It is so that you choose the most suitable one for your application.

Proper maintenance and troubleshooting are important to increase the life and productivity of your Vacuum Tank.

Make sure that you keep your Vacuum Tank clean so that you can keep it away from sludge building problems in your portable toilet trailer.


FAQs of Vacuum Tank

  1. How to use a Lockout Device for your Vacuum Tank? 

Turn on the switch and remove the electrical connection of your Vacuum Tank. Turn the rotatory switch position to ‘O’ and now secure your device with a lock.


  1. How to control the vacuum level of a Vacuum Tank?

The Vacuum Tank has a built-in PID and a built-in control for the vacuum level.


  1. What is a Per-Skinning Chamber in your Vacuum Tank? 

A Pre-Skinning chamber in your Vacuum Tank provides independent flow water control and a tooling kit.


  1. What is the Required Hardware for Installation and Maintenance of a Vacuum Tank? 

The necessary hardware for installation and maintenance of a Vacuum Tank is a wire strain relief, one hex key ranch, a laser bore, and a flathead screwdriver.


  1. What Will Happen if the Pump of the Vacuum Tank Rotates in the Opposite Direction? 

If the pump of the Vacuum Tank rotates in the opposite direction, it will damage the unit even if it happens for a short time.


  1. How is Vacuum Tank Checked for Leaks?

Several tests are performed to check if the Vacuum Tank leaks. It includes a color check during the welding. Also, a bubble test or helium test can be performed. These tests are necessary before final shipment.


  1. What are the thresholds for your Vacuum Tank leak tests?

The threshold for Vacuum Tank leak is from 1 pa/sec to 0.01 pa/sec.


  1. What is Meant by Pressure Drop in the Vacuum Tank? 

Pressure drop in a Vacuum Tank means sudden loss of pressure because of the frictional forces in the molecules of fluid flowing in the pipeline.


  1. How to Increase the Vacuum Flow in the Vacuum Tank?

The Vacuum flow in the Vacuum Tank can be increased by making sure that your unit is completely free of leaks.


  1. Does your Vacuum Tank Need a Cover? 

A Vacuum Tank is better protected from dust and other external agents like UV light and direct heat with the help of a cover. Make sure it is not a regular cover used for cars.


  1. How much can Solid Debris Pass through the Vacuum Tank without Damaging? 

Up to 37 mm of solid debris can pass through the Vacuum Tank without damaging the system. It does not depend on bypass devices.


  1. How can a Vacuum Tank be transported to the Site of Application? 

The Vacuum Tank can be transported with the help of a tow vehicle. The power of the tow vehicle shall be sufficient to move the Vacuum Tank.


  1. What Chemicals Can Be Used on the Aluminum and Stainless Steel Surface of Vacuum Tank? 

Make sure that the chemicals you use for your Vacuum Tank do not corrode or damage it. For example, chemicals free of chlorides are suitable to be used.


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