A portable sink gives you access to running water in places where a permanent water connection is unavailable, inconvenient or simply unnecessary. Whether you are setting up a market stall, temporary catering area, outdoor workplace or campsite, a self-contained portable hand washing station provides a practical way to keep hands and equipment clean without installing fixed plumbing.
Expondo’s portable sink offer is designed around mobility, generous water capacity and straightforward operation. The ulsonix model combines a 65 L fresh-water tank with a separate 77 L wastewater tank, creating a self-contained washing system that can be positioned wherever it is needed. With no permanent inlet or drain connection required, this no plumbing portable sink is particularly useful for temporary and frequently changing work environments.
The unit measures 79 x 46 x 116 cm and weighs 21.5 kg, providing a spacious portable wash basin while remaining practical to move between locations. Integrated handles further simplify transport and repositioning.
The 65 L fresh-water capacity is one of the main advantages of this portable sink with water tank. A larger tank means fewer interruptions for refilling, making the unit well suited to locations where numerous people may need to wash their hands throughout the day. At the same time, the 77 L wastewater tank collects used water separately, so the station can operate independently of a conventional drain.
Water is supplied using a foot-operated pump. Pressing the pedal activates the tap without requiring the user to touch a handle, making hand washing more convenient and reducing contact with frequently touched surfaces. Because the system is mechanically operated, there is also no need for an electrical connection simply to dispense water.
The portable sink unit is made from robust HDPE. This material combines durability with easy-care surfaces, making it suitable for repeated use in working environments and outdoor settings. The drain screen is made from stainless steel, while the generously proportioned basin provides enough space for comfortable hand washing and light rinsing tasks.
For businesses that need a straightforward portable hand wash sink rather than an electrically heated unit, this simple construction offers another advantage: fewer connections and components are required before the sink is ready for use.
A mobile sink is useful wherever hygiene facilities need to follow the activity rather than remain permanently fixed in one room. This makes portable sinks particularly relevant for temporary businesses, mobile teams and locations where installing new plumbing would be disproportionate to the period of use.
At markets, fairs, festivals and pop-up events, a portable sink station can provide a dedicated hand-washing point close to staff or customer areas. Street-food operators and temporary catering teams can also position the sink close to their working area without having to depend on a washroom elsewhere on the site.
The same flexibility is useful for workshops, maintenance areas and temporary work sites. Instead of repeatedly walking to a distant fixed basin, staff can have a portable hand washing sink positioned closer to where dirty work is taking place.
For camping, seasonal sites and other outdoor locations, the self-contained tanks make the station particularly convenient. Fill the fresh-water tank before use, operate the tap with the foot pump and empty the wastewater tank when necessary. There is no need to create a permanent water installation simply to establish a functional washing point.
A mobile hand-washing area can also form part of a wider temporary catering or service setup. For example, stainless steel tables provide practical working surfaces, while mini fridges can add compact chilled storage where space is limited.
When comparing portable sinks, tank size should be one of your first considerations. Small containers are easy to lift but require frequent refilling. A larger-capacity design such as Expondo’s 65 L model is better suited to longer periods of use and locations where access to a refill point is less convenient.
Wastewater capacity matters just as much. Ideally, the wastewater tank should provide sufficient room to collect the water discharged from the fresh-water system without constant emptying. The 77 L waste tank in the ulsonix sink provides more capacity than its 65 L fresh-water reservoir, helping create a practical closed washing system.
Next, consider how water is dispensed. Foot-operated systems are useful when you want touch-free control without relying on electricity. Electrically heated sinks and sensor-operated alternatives available elsewhere on the market may be appropriate when hot water is essential, but they also require access to a suitable power supply. If your priority is independence from both plumbing and electricity, a foot-pump mobile sink offers a particularly simple solution.
Material is another important consideration. HDPE is resilient, practical to clean and well suited to equipment that may need to be transported regularly. Stainless steel models can be attractive for permanent-looking indoor installations, but material choice should ultimately reflect where and how often the sink will be moved and used.
Finally, check the overall dimensions before buying. A portable wash basin still needs enough room around it for comfortable use. Expondo’s 79 x 46 cm footprint provides a useful balance between basin space and the amount of floor area occupied.
For temporary catering environments, good organisation is just as important as mobility. Keeping hand washing separate from other work processes can help create a tidier, more practical layout. A self-contained portable hand washing station can be positioned where staff can reach it easily rather than designing the entire workspace around the nearest fixed sink.
If you also operate a permanent kitchen or preparation area, Expondo offers equipment for both mobile and fixed setups. Alongside portable washing equipment, you can explore kitchen faucets when fitting or updating sinks connected to a conventional water supply.
The portable sink is also useful beyond food service. Market traders, mobile service businesses, workshops, outdoor events and recreational sites can all benefit from an independent source of water for hand washing and light rinsing. Its self-contained design allows the hygiene point to be moved when the layout or working location changes.
Expondo’s ulsonix portable sink focuses on the features that matter when independence and capacity are priorities: a large 65 L clean-water tank, 77 L wastewater tank, touch-free foot-pedal operation and durable HDPE construction. No permanent plumbing connection is required, and the water delivery system does not depend on electricity.
The straightforward design also makes the station easy to incorporate into temporary setups. Integrated handles assist with transportation, while the compact footprint helps you establish a washing area without taking up unnecessary working space. Technical specifications and a user manual are available for the product, and Expondo also provides access to spare-parts ordering for longer-term maintenance.
For markets, events, mobile businesses, workshops, campsites and other locations without convenient fixed plumbing, a self-contained portable sink offers a simple way to put water exactly where it is required. Choose a practical mobile sink from Expondo and create a flexible hand-washing point without the cost and disruption of installing a permanent water connection.