When a kitchen does not have enough room for a standard dishwasher, a countertop dishwasher with a water tank is a flexible and practical alternative. These appliances do not require a fixed plumbing connection and can be used without any difficulty in small kitchens, rented flats, student accommodation or motorhomes. The built-in water tank allows the machine to run without complex installation or plumbing work – ideal for anyone who needs to stay flexible or does not have a fixed water connection to hand.
Countertop dishwashers with a water tank clean effectively in a small footprint and offer a convenient solution for everyday washing-up needs. In our test, we assessed the best models for performance and features to help you find the right appliance for your specific requirements.
What Is a Countertop Dishwasher Without a Water Connection?
A countertop dishwasher without a water connection – also known as a tabletop dishwasher with a water tank – is a compact appliance that runs entirely without fixed pipework. Rather than being permanently connected to a tap, the integrated water tank is simply filled by hand. Waste water can be conveniently drained into the sink or into a bucket.
This makes setting up a countertop dishwasher straightforward: place the appliance on the worktop, fill the tank, connect the drain hose – and you are ready to go. For renters, those who move frequently, motorhome owners or anyone without room for a built-in dishwasher, this solution is ideal. Both terms – "with water tank" and "without water connection" – describe the same principle: maximum flexibility, no plumbing required.
The Best Countertop Dishwashers with Water Tank 2026
- Best overall – HAVA R01 countertop dishwasher with water tank: €249.99 at havalab.com
- Best upgraded model – HAVA R09 countertop dishwasher with water tank: €319.99 at havalab.com
- Best for single-person households – MEDION mini dishwasher: €299.99 at Amazon
- Best value for money – Hermitlux countertop dishwasher: €287.99 at Amazon
- Easiest to use – Midea ST 5.31 mini dishwasher: €308.82 at Amazon
HAVA R01 Countertop Dishwasher with 5L Water Tank
- What we like
-
- Dries dishes very effectively (hot air drying + 72-hour ventilation)
- Two water supply options: water tank or direct connection to the tap
- 5 wash programmes for different cleaning needs
- Excellent customer service; accessories available directly on the website
- Compact enough to fit on any worktop or shelf
- What we don't like
-
- Capacity of 2 place settings – expected given the compact size
- No integrated salt compartment
The HAVA R01 is our top pick among countertop dishwashers that do not require a fixed water connection. Despite its compact dimensions of 42.8D × 42.5W × 45.8H cm, it offers five efficient wash programmes: Normal, Quick, Delicate, Fruit and Intensive. Whether it is glasses, baby bottles or heavily soiled dishes, there is a programme to suit every need.
Particularly convenient is the choice of two water supply options: you can connect the hose directly to the tap or fill the 5-litre water tank by hand. This means the R01 works genuinely anywhere – in a rented flat, a motorhome or student accommodation. The hot air drying function ensures dishes are completely dry after washing; the 72-hour ventilation setting keeps them clean and fresh until you are ready to use them.
What the reviewer says about the HAVA R01 countertop dishwasher
Dimensions: 42.8D × 42.5W × 45.8H cm | Noise level: 50 dB | Place settings: 2 | Wash programmes: 5 | Energy efficiency class: F | Water tank: 5 L | Price: €249.99
HAVA R09 Countertop Dishwasher – The Upgraded Model with Water Tank
- What we like
-
- 3 place settings – more capacity in the same compact footprint
- 7 wash programmes for even greater flexibility
- Energy efficiency class D – more efficient than the R01
- Integrated salt compartment for optimal water softening
- 18-hour delay start for flexible scheduling
- Child lock function for added safety at home
- What we don't like
-
- Slightly higher price than the R01
The HAVA R09 is the upgraded version of the R01, keeping the same compact dimensions. At an identical 42.8D × 42.5W × 45.8H cm, it fits the same space but offers noticeably more: the improved basket holds up to three place settings instead of two, and with seven wash programmes – including a dedicated hygiene cycle – it handles a wider range of cleaning situations.
Anyone living in a hard water area will appreciate the integrated salt compartment, which automatically softens the water and protects both the dishes and the machine over time. The 18-hour delay start lets you schedule the wash cycle for off-peak electricity hours or set it up in the morning to run at lunchtime. The child lock function makes the R09 the safer choice for family households.
Like the R01, the R09 can also be used without a fixed plumbing connection: either via the 5-litre water tank or with a direct connection to the tap. Hot air drying and 72-hour ventilation are both included. The improved energy efficiency class D (versus F on the R01) reduces electricity consumption in everyday use – a saving that adds up over the lifetime of the appliance.
Dimensions: 42.8D × 42.5W × 45.8H cm | Place settings: 3 | Wash programmes: 7 | Energy efficiency class: D | Water tank: 5 L | Salt compartment: yes | Delay start: 18 hrs | Child lock: yes | Price: €319.99
HAVA R01 vs. R09: Which Model Is Right for You?
Both HAVA models are countertop dishwashers that need no plumbing connection – the same dimensions, but different feature sets. The table below shows at a glance when the upgraded model is worth the extra outlay:
| Feature | HAVA R01 | HAVA R09 |
|---|---|---|
| Price | €249.99 | €319.99 |
| Dimensions (D×W×H) | 42.8 × 42.5 × 45.8 cm | 42.8 × 42.5 × 45.8 cm |
| Water tank | 5 L | 5 L |
| Place settings | 2 | 3 |
| Wash programmes | 5 | 7 |
| Energy efficiency class | F | D |
| Hot air drying | ✓ | ✓ |
| 72-hour ventilation | ✓ | ✓ |
| Integrated salt compartment | ✗ | ✓ |
| Delay start | ✗ | 18 hrs |
| Child lock | ✗ | ✓ |
| Operation without plumbing | ✓ | ✓ |
Our verdict on the comparison: the R01 is the ideal choice for single occupants and couples looking for a reliable, affordable countertop dishwasher that needs no plumbing. The R09 is worth the extra investment if you need more capacity, a salt compartment or the delay start – without giving up a single centimetre of worktop space.
MEDION Mini Dishwasher Without Fixed Water Connection
- What we like
-
- Can also be used with a water tank
- Very good washing results
- Comes with a special basket for baby bottles
- Compact and flexibly adjustable
- What we don't like
-
- Higher energy consumption (energy efficiency class G)
Living alone does not have to mean washing up by hand after every meal. The Medion countertop dishwasher, which requires no fixed water connection, fits neatly into any small kitchen – ideal for student halls, motorhomes, compact flats or single-person households. This countertop dishwasher with a water tank holds two place settings and offers six efficient wash programmes, each using just 5 litres of water.
Set-up is also very straightforward: connect it to a tap or fill the tank manually. This tabletop dishwasher without a water connection does not even need to be next to the sink – a bucket is all you need to collect the waste water. Another highlight is the delay start function, which lets you programme the machine to start 1 to 24 hours in advance.
Dimensions: 42D × 42W × 43.5H cm | Noise level: 58 dB | Place settings: 2 | Wash programmes: 6 | Energy efficiency class: G | Water tank: 5 L
Hermitlux Compact Dishwasher with Water Tank
- What we like
-
- The included funnel makes filling the water tank easy
- Suitable for larger plates up to 30 cm in diameter
- Can be used with or without a direct water connection
- What we don't like
-
- The tank needs to be filled before each use
- At 60 dB, slightly louder than the HAVA models
This Hermitlux countertop dishwasher also features a 5-litre water tank. Water can be poured in from the top, just like filling a coffee machine – the included funnel prevents spills. The touch controls and LED display on the front panel are easy to use. This mini dishwasher without a plumbing connection offers five wash programmes and comes with a cutlery basket and a fruit basket.
Dimensions: 42.5D × 42.8W × 45.8H cm | Noise level: 60 dB | Place settings: 4 | Wash programmes: 5 | Energy efficiency class: F | Water tank: 5 L
Midea ST 5.31 Mini Dishwasher with 6L Water Tank
- What we like
-
- Door opens automatically at the end of the cycle
- Remote control via app
- Interior lighting for better visibility
- Largest water tank in the comparison: 6 L
- What we don't like
-
- No salt reservoir
- At 58 dB, slightly louder than the HAVA R01
If you rent your home, own a motorhome, or need a dishwasher somewhere without pipework, the Midea ST 5.31 mini dishwasher with water tank is a solid option. The largest water tank in the comparison (6 L) allows slightly longer wash cycles without needing to refill. With a 24-hour delay start, a 58-minute quick wash cycle and a 72°C hygiene programme, it handles a wide range of everyday situations. The automatic door opening at the end of the cycle helps the dishes dry naturally.
Dimensions: 42D × 44W × 47H cm | Noise level: 58 dB | Place settings: 3 | Wash programmes: 7 | Energy efficiency class: F | Water tank: 6 L
How to Set Up a Countertop Dishwasher Without a Plumbing Connection
A countertop dishwasher without a fixed plumbing connection does not require a complicated installation. Simply place the appliance on the worktop, attach the drain hose (usually at the back of the machine) and lead the other end into a sink or bucket to collect the waste water. Then fill the water tank by hand – and you are ready to run your first wash cycle.
If you would like to connect the dishwasher directly to the tap: attach the water inlet hose to the machine and the other end to the kitchen tap. While the dishwasher is running, the machine draws water automatically from the tap. This makes it even more convenient to use – without the need for any permanent installation.
Frequently Asked Questions About Countertop Dishwashers with Water Tank
Can You Use a Countertop Dishwasher Without a Water Connection?
Yes – that is exactly how a countertop dishwasher with a built-in water tank works. You fill the tank manually with water, start the machine, and drain the waste water through a hose into the sink or a bucket. No connection to the household plumbing is required. Models such as the HAVA R01 and R09 also offer the option of connecting to a tap directly when preferred – for added convenience.
How Much Water Does a Countertop Dishwasher Tank Hold?
Most models in our test have a 5-litre water tank. This is sufficient for a full wash cycle with 2 to 3 place settings. The Midea ST 5.31 is the exception with a 6-litre tank. For comparison: a traditional built-in dishwasher uses around 10 to 15 litres per cycle – a countertop dishwasher is therefore considerably more water-efficient.
Can You Put Hot Water in a Countertop Dishwasher Tank?
Countertop dishwashers with a built-in heating element heat the water themselves, so you can fill the tank with cold water. For additional energy savings, you can also fill the tank manually with warm water. Always follow the manufacturer's guidelines: water temperature should generally not exceed 50 °C to avoid damaging the appliance's electronics.
How Often Do You Need to Refill the Water Tank?
For most models, a full 5-litre tank is enough for one complete wash cycle. This means you only need to fill the tank once before washing – a task that takes under a minute. An overflow protection feature (audible alert or automatic shutoff) present on many machines prevents the tank from overfilling.
Is a Dishwasher Without a Plumbing Connection More Economical Than Washing Up by Hand?
Yes, considerably. Most people use between 30 and 60 litres of water when washing up by hand. A countertop dishwasher with a water tank uses just 5 to 6 litres per cycle – a saving of up to 90 per cent. Energy consumption is also generally lower, as the water is heated and used more precisely. With the HAVA R09, the improved energy efficiency class D reduces consumption further compared to class F appliances.
Who Is a Countertop Dishwasher with a Water Tank Suitable for?
These appliances are ideal for anyone who cannot or does not want to install a fixed dishwasher: renters who are not permitted to make modifications to their home; students in halls of residence; single occupants and couples with limited kitchen space; motorhome and caravan owners who want to wash up comfortably while on the road. In short: a countertop dishwasher without a plumbing connection is the right choice wherever flexibility and space-saving are priorities.
Summary: Countertop Dishwashers with Water Tank
Nobody enjoys facing a stack of dirty dishes after a good meal. A countertop dishwasher that needs no fixed plumbing is the practical solution: no building work, no plumber, no hassle – just place it, fill the tank and get started.
For those just starting out or looking for a reliable, affordable option, we recommend the HAVA R01 countertop dishwasher: 5 wash programmes, a 5-litre water tank, quiet operation at just 50 dB – all at a very competitive price.
Those who need more capacity, an integrated salt compartment and better energy efficiency will find what they are looking for in the HAVA R09: the same compact dimensions, but with 3 place settings, 7 programmes, energy efficiency class D, an 18-hour delay start and a child lock. Both models run without a plumbing connection – making light work of the washing-up every day.
