Tired of handwashing dishes after every meal? Many people in small apartments or RVs face this problem. They want clean dishes without needing a big, built-in dishwasher. Countertop dishwashers are a great solution, but one feature causes confusion: the water tank. Should you get one that hooks up to the faucet, or one with its own water reservoir?
Choosing a countertop dishwasher with a built-in water tank solves a major headache. You skip the tricky plumbing setup! However, knowing which models work best and what to look for can feel overwhelming. You worry about tank size, cleaning the tank, and overall performance. You need clarity before spending your money.
This post cuts through the confusion. We will explore exactly what these dishwashers offer, the pros and cons of the water tank feature, and how to pick the perfect model for your space. Get ready to discover the easiest path to sparkling clean dishes, no matter how small your kitchen is.
Top Countertop Dishwasher With Water Tank Recommendations
No. 1
COMFEE' Portable Mini Dishwasher Countertop with 1.32Gal Built-in Water Tank for Apartments& RVs, No Hookup Needed, 6 Programs, 360° Dual Spray, 162℉ High-Temp& Air-Dry Function
- Please make sure the distance between your countertop and wall cupboard is more than 19.6" No installation needed: Adding water manually with the water filling guide included in the 1.32Gal built-in water tank, you can put the dishwasher in any suitable place without connecting to tap water. Or it can be hooked to the kitchen faucet directly with the included water hose (Adapter included).Water pressure : 0.04 - 1.0MPa.
- Ultra-compact Design: The ultra-compact design allows the dishwasher to wash 30+ items（Max to 9.5-inch plates) at a time while occupying a small area, which is ideal for small houses, apartments, dorms, boats, and campers/RVs.
- 6 Program Options: NORMAL, RAPID, HYGIENE, FRUIT, GLASS washing programs, and AIR REFRESH extra drying mode meet all your daily needs. Note: Use the standard dishwasher powders or detergents because regular liquid dish soap will cause dishwasher problems. (No detergent is needed for the FRUIT program, and RAPID just needs half of the standard quantity. )
- High-Temp Hygiene: The Hygiene cycle heats the water up to 162℉, making it great for really dirty dishes and even safe for cleaning your little one's dinnerware.
- Extra Drying & Freshness: The Air Refresh mode circulates air to keep both your dishes and the machine dry and fresh. It helps remove moisture and odors, and if you don't need it, you can turn it off anytime.
No. 2
NOVETE Portable Countertop Dishwashers, Compact Dishwashers with 5L Built-in Water Tank & Inlet Hose, 5 Washing Programs, Baby Care, Air-Dry Function and LED Light for Small Apartments
- 【SMALL SIZE, LARGE CAPACITY】This portable dishwasher only measures 16.9 x 16.8 x 18.1 inches, but holds 4 full place settings and fits up to 12" dishes loaded at an angle, easily meeting daily needs for a family of 3-4; the double-layer design offers enough space for 4 x serving bowls, 4 x cups, 4 x small plates, 4 x dinner plates, 7 x spoons, 7 x forks and 7 x knives; perfect for small-sized houses, apartments, dorms, boats, and campers/RVs
- 【NO INSTALLATION NEEDED】This countertop dishwasher supports 2 water supply modes, including a faucet mode and water tank mode; a built-in 5 L water tank allows instant use when fully filled. The automatic water level indicator lets you know when the correct water level has been reached; to use the faucet mode, simply connect the water inlet hose to the machine and faucet
- 【BABY CARE MODE】This compact dishwasher offers 5 wash cycles - Normal, Speed, Soft, Baby Care/Heavy, and Fruit; the Baby Care/Heavy mode with 167 °F washing temperature is suitable for baby products and oily tableware, which rinses them thoroughly and gives glassware a sparkling clean finish
- 【3-IN-1 FUNCTION】Featuring a Dry mode, this machine is equipped with the features of a dishwasher, dryer, and cabinet, making taking care of your dishes and glassware a breeze; 60 minutes of hot air drying will automatically start after the wash cycle is finished, keeping your dishes dry and odorless; 72 hours of automatic ventilation stores your tableware in sanitary condition, providing clean dishes whenever you need them
- 【FULLY EQUIPPED】The storage rack and cutlery basket make it easy to clean ''top rack only'' dishwasher safe items such as knives, forks, and spoons, leaving more space for dishes and small pots; lower and upper spray arms give dishes a streak-free deep cleaning, and the included fruit basket stores fruits and vegetables neatly and cleans them
No. 3
EUHOMY Countertop Dishwasher Portable with 6 Programs, 5L Built-in Water Tank for Apartments & RV, 167℉ High-Temp, No Hookup Needed, Mini Dishwasher with Baby Care, Air Dry/Quick/ECO/Fruit/Normal Mode
- 𝐍𝐨 𝐈𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧 — 𝐓𝐚𝐧𝐤 𝐨𝐫 𝐅𝐚𝐮𝐜𝐞𝐭, 𝐑𝐞𝐚𝐝𝐲 𝐅𝐚𝐬𝐭: No permanent setup required. Use the built-in 5L (1.32 gal) tank for true plug-and-play washing, or connect the included hose to your faucet for continuous water supply. Our countertop dishwasher's water-level indicator tells you when it’s ready. No tools, no drilling, no stress—ideal for apartments, rentals, dorms, RVs, and flexible kitchens
- 𝟒𝟎 𝐝𝐁 𝐐𝐮𝐢𝐞𝐭 — 𝐌𝐚𝐝𝐞 𝐟𝐨𝐫 𝐑𝐞𝐚𝐥 𝐋𝐢𝐯𝐢𝐧𝐠: Built for apartments and open kitchens, this countertop dishwasher runs at a quiet 40 dB to maintain a peaceful space. Designed for daily comfort and convenience, it lets you wash dishes during work calls, late nights, or your nap time without disrupting your routine
- 𝐂𝐨𝐦𝐩𝐚𝐜𝐭 𝐎𝐮𝐭𝐬𝐢𝐝𝐞 — 𝐅𝐢𝐭𝐬 𝟑𝟎+ 𝐈𝐭𝐞𝐦𝐬 𝐈𝐧𝐬𝐢𝐝𝐞: Sized at 16.83 × 16.73 × 18.03 in, this portable dishwasher fits most countertops while holding 30+ items per load. Fits plates up to 10.25 in, plus bowls, cups, glasses, and full cutlery sets—organized with a cutlery holder, fruit basket, and kettle. *Compatible with G3/4-inch faucet connections, please purchase a faucet adapter separately
- 𝐄𝐯𝐞𝐫𝐲𝐝𝐚𝐲 𝐃𝐢𝐬𝐡𝐞𝐬 𝐅𝐢𝐫𝐬𝐭 — 𝐍𝐨𝐭 𝐎𝐯𝐞𝐫𝐬𝐢𝐳𝐞𝐝 𝐂𝐨𝐨𝐤𝐰𝐚𝐫𝐞: Optimized as a portable dishwasher countertop for plates, bowls, cups, utensils, baby items, and pet accessories—not bulky pots, baking trays, or oversized cookware. For best results, scrape off heavy grease or burnt-on residue before loading. A practical, honest fit for everyday meals
- 𝟔 𝐏𝐫𝐨𝐠𝐫𝐚𝐦𝐬 + 𝟑𝟔𝟎° 𝐒𝐩𝐫𝐚𝐲, 𝐓𝐡𝐨𝐫𝐨𝐮𝐠𝐡 𝐂𝐥𝐞𝐚𝐧𝐢𝐧𝐠: Choose Normal, Quick, ECO, Baby Care/Heavy, Fruit, and Dry for different needs on this countertop dishwasher. The 29-minute Quick saves time, while Baby Care/Heavy reaches up to 167°F for deeper cleaning. Dual spray arms deliver 360° coverage for dishes, bottles, and pet bowls. *Use dishwasher-specific detergent only for better results
No. 4
AIRMSEN Portable Countertop Dishwashers, 5 Washing Programs Mini Dishwashers with 5 L Built-in Water Tank and Double-layered Glass Door, No Hookup Needed for Home, Apartments & RVs
- Small Size but Large Capacity - The ultra-compact design allows the mini dishwasher to wash 40+ items (up to 12-inch plates, but needs to be placed at a slight angle), easilymeeting the daily needs for a family of 3-4. Plus, this portable dishwasher measures just 16.75W x 16.86D x 18.05H inches, occupying a small area, perfect for small houses, apartments and RVs/campers.
- Ready to Use, No Installation Required - With a built-in 5-liter water tank, you can place the small dishwasher flexibly anywhere convenient without the need for a water connection. Of course, you can also directly connect it to your kitchen faucet using the included hose.
- 5+2 Program Options - With 5 washing programs including Normal, Speed, Glass, Baby Care and Fruit, it meets all your daily cleaning needs. Equipped with 2 enhanced functions: provides an extra 60 minutes of drying time and offers 72 hours of ventilated storage to keep your tableware hygienic and ready for use.
- Efficient Cleaning - 14 washing nozzles evenly clean heavily soiled dishes, combined with 360° spiral spray from upper and lower spray arms, ensuring complete washing of all the dishes from all angles.Also, high water temperature of up to 167°F and high water pressure offer you the best cleaning towards the most stubborn stains. Ideal for cleaning baby bottles and children's tableware, ensuring your children use the cleanest tableware.
- Easy to Use and Maintain - This countertop dishwasher features simple touch control buttons for easy selection of the desired washing cycle. The LED touch screen display is angled for improved visibility and usability. Also, the transparent double-layer glass door, combined with built-in LED lights, allows you to see food stains on tableware being removed in real-time.And the water tank is easy to refill and clean, ensuring it stays in optimal condition.
No. 5
COMFEE' Countertop Dishwasher, Portable Dishwasher with 6L Built-in Water Tank, Mini Dishwasher with More Space Inside, 7 Programs, UV Hygiene& Auto Door Open, for Apartments, Dorms& RVs, White
- [ No installation needed ]: Adding water manually in the upgraded 6 Liter built-in water tank, you can put the dishwasher in any suitable place without connecting to tap water. Or it can be hooked to the kitchen faucet directly with the included quick connect water hose (Adapter included).
- [ Upgraded Space Design ]: The Miniplus has a larger capacity inside than a normal mini dishwasher, which allows you to load a 10.5-inch plate at a time while occupying a very small area, which is ideal for small houses, apartments, dorms, boats, and campers/RVs.
- [ 5+2 Program Options ]: 5 Washing programs: NORMAL, RAPID, HYGIENE, FRUIT, GLASS, which meets all your daily cleaning needs. Equipped with 2 enhanced functions: AUTO-OPEN provides effective drying performance; UV Hygiene Program ensures there will be no food particles left behind.
- [ 192 ℉ High-Temp Hygiene ]: The Hygiene wash cycle boosts water temperature to 162 ℉ Rinsing and Max to 192 ℉ which can tackle heavily soiled dishes and is also suitable for cleaning baby bottles and children’s dinner sets.
- [ AUTO-OPEN & FAN ENHANCE DRYING ]: The door opens automatically at the end of each cycle, and the extra built-in turbofan lets out the steam and essentially helps your dishes dry quicker, delivering cabinet-ready dishes even faster.
No. 6
MOMOKOVA Portable Countertop Dishwasher with 5L Built-in Water Tank,Upgraded 7 Program & 24H Delayed Wash,360° Dual Spray, 167℉ High-Temp & No Hookup Needed for Home,white (white)
- 【7 Programs for Family Members】This countertop dishwasher features Normal, Quick, ECO, Baby Care/Strong, Glass, Fruit, and Dry settings, giving you the flexibility to handle everything from daily plates to delicate glassware and baby items. Once a wash cycle completes, the Dry function delivers 60 minutes of heated drying and supports up to 72 hours of automatic ventilation to minimize moisture buildup and keep dishes fresh.
- 【Compact Size, Surprisingly Large Capacity】Despite its space-saving footprint, this countertop dishwasher holds a generous load—easily managing everyday dishes for a family of 3–4. Its optimized interior layout fits plates up to 12 inches (angled placement recommended) along with bowls, cups, and cutlery, offering efficient cleaning in a mini form. Measuring 17.9 × 16.3 × 16.5 inches, it takes up minimal counter space, making it a smart choice for small kitchens, apartments, dorms, RVs, and camper living.
- 【24H Delayed Start & 30-Min Drying】The upgraded design includes a 24 hour delayed start, allowing you to schedule wash cycles around your routine, along with a 30 minute hot-air drying option that helps quickly remove moisture and keep dishes fresh. Perfect for busy households wanting flexible timing and convenient drying in one compact unit.
- 【No Installation & Water Saving Design】 Our compact dishwasher saves up to 80% water compared to handwashing, 5 L/1.32 gallon of water in the water tank can handle multiple cleaning operations. Plus, we provide a 1-year warranty. For any questions, we're here to help!
- 【High-Temperature Cleaning】This cycle heats water up to 167 ℉ and uses 14 washing nozzles with 360° spiral spray from upper and lower arms to remove tough stains and thoroughly clean heavily soiled dishes. Perfect for baby bottles and children’s tableware, it ensures hygienic results with high-temperature, high-pressure cleaning.
No. 7
Hermitlux Countertop Dishwasher, 7 Washing Programs Portable Mini Dishwasher with 5-Liter Built-in Water Tank for Apartments & RVs, LED Light, Glass Door, No Hookup Needed
- 【5 PLACE-SETTING CAPACITY】hermitlux Countertop Dishwasher measures just 16.85" W x 16.73" D x 18.23" H. Its roomy interior features a special dish rack and cutlery holder, accommodating over 30 pieces of kitchenware at once. It fits 5 full place settings and 10.25" dishes at an angle, making it perfect for small-sized houses, apartments, dorms, boats, campers and RVs. Make sure there's at least 20.08" between your countertop and those wall cabinets.
- 【7+3 WASHING PROGRAMS】 The 120V portable dishwasher comes with 7 washing programs—Standard, Quick, Strong, ECO, Fruit, Self-clean, and Glass—it ensures that all your dishes, from delicate glassware to baby bottles, are thoroughly cleaned. It also comes with 3 extra functions: Delay, Child Lock, and Dry, fully satisfying your everyday dishwasher needs.
- 【WATER-SAVING】This compact dishwasher saves up to 83% more water compared to handwashing, using just 5 liters per cycle.
- 【UP TO 18-HOUR DELAYED START】This tabletop dishwasher can be set to finish at your convenience with its 18-hour delay option on this updated model, letting you benefit from off-peak power rates and get the dishes washed while you're sleeping.
- 【360° All-AROUND CLEANING】The spray arms feature 14 water jets that spray from both the top and bottom, achieving a 360° cleaning coverage. This ensures a meticulous rinse, imparting a gleaming, pristine finish to your dishes.
No. 8
COMFEE’ Countertop Dishwasher, Energy Star Portable Dishwasher, 6 Place Settings & 8 Washing Programs, Speed, Baby-Care, ECO& Glass, Dish Washer for Dorm, RV& Apartment, Black
- 6 Place Setting- A perfect size (H17.2″×W21.6″×D19.7″) for 2-3 people, COMFEE’ compact dishwasher is suitable for dorms, RVs, and apartments. This countertop dishwasher can fit up to 70 pieces of tableware and has a plate size of up to 10 inches in diameter. Note: COMFEE dishwashers are tested at the factory before they are shipped. If your new dishwasher has some water inside, this is normal.
- Simple Installation- COMFEE' portable dishwasher can be connected to faucet directly (Suitable adaptor needed). Depending on your needs, it can be flexibly placed on the table or fitted in the cupboard.
- 8 Washing Cycles- Most of the cleaning cycles, including Heavy, Normal, Baby-Care, ECO, Glass, and Speed, helped with extra-drying function, and deliver sparklingly cleaned and dried dishes. Three more cleaning options, including Speed, Mini-party, and Rinse, are designed for COMFEE' compact dishwasher, providing high flexibility for you to choose in different situations.
- Heavy Program- Heavily soiled dishes are cleaned evenly with 12 washing nozzles, accompanied with 360° spiral spray wash to ensure complete washing of all the dishes from all angles. Also, high water temperature, which is up to 154℉, together with high water pressure, offer you the best cleaning towards the most stubborn stains.
- Speed Program- Only takes you 45 minutes to get all dishes cleaned, perfect for hurry-up situations, like holding a multi-round party. Accompanied with Energy Star compliant, water consumption can be as low as 2.77 gallons of water, which greatly saves your costs.
Your Guide to Choosing the Best Countertop Dishwasher With a Water Tank
A countertop dishwasher with a built-in water tank is a fantastic appliance. It saves space and water. It makes cleaning dishes much easier, especially in small kitchens or apartments. This guide helps you pick the right one for your needs.
Key Features to Look For
Good features make using your dishwasher simple and effective. Always check these things before you buy:
- Water Tank Size: Look at how many liters the tank holds. A bigger tank means you run fewer refills. Small tanks need refilling after every cycle or two.
- Washing Cycles: More cycles give you more options. You want a normal wash, a quick wash for lightly soiled items, and a heavy-duty cycle for baked-on food.
- Drying Method: Some models use heat to dry dishes. Others use air circulation. Heat drying works faster but uses more energy.
- Noise Level (dB): Dishwashers make noise. Check the decibel (dB) rating. Anything under 60 dB is usually quiet enough for most homes.
- Water Supply Options: Even though it has a tank, some models let you connect directly to a faucet if you prefer. This is a great bonus feature.
Important Materials and Build Quality
The materials inside the dishwasher affect how long it lasts and how clean your dishes get.
Interior Tub Material
Most good models use stainless steel for the interior tub. Stainless steel resists rust and high heat well. Plastic tubs are cheaper, but they might stain or degrade faster over time.
Racks and Baskets
Check the racks where you place your plates and cups. Quality racks use durable, coated metal. Cheap plastic coatings can chip easily. Chipped coatings expose the metal to water, which causes rust.
Factors That Improve or Reduce Quality
A few design choices significantly impact your daily experience.
Better Quality Indicators
- Automatic Detergent Dispenser: High-end models automatically add the right amount of soap. This prevents using too much or too little detergent.
- UV Sanitization: Some advanced units include a UV light to kill germs during the cycle. This provides extra peace of mind.
- Filter System: A good, easily removable filter catches all food particles. You need to clean this filter often.
Quality Reducers (Things to Avoid)
Be careful of units with very tiny water tanks. Also, avoid models that require special, expensive cleaning tablets instead of standard dishwasher pods.
User Experience and Use Cases
Think about where and how you will use the machine.
Perfect Scenarios for Tank Models
These dishwashers shine in specific situations:
- Small Apartments/Dorm Rooms: If you do not have a direct water hookup, the tank system is perfect. You just pour water in and run the wash.
- RVs and Campers: Because they are portable and don’t always need a constant water line, they work great on the road.
- Light Use: If you only cook for one or two people, running a small load daily is efficient with a tank model.
Loading can sometimes feel tight. Check the dimensions. Make sure it fits your largest dinner plates. Most countertop models handle about 4 to 6 standard place settings.
10 Frequently Asked Questions (FAQ) About Countertop Dishwashers With Water Tanks
Q: Do I need to connect these dishwashers to a faucet?
A: No, that is the main benefit! You fill the internal water tank manually. Some models offer the option to connect to a faucet for convenience, but it is not required.
Q: How often do I need to refill the water tank?
A: It depends on the tank size and the cycle you choose. A small cycle might use 2 liters, while a heavy cycle might use 4 liters. Check the product manual for exact usage.
Q: Are countertop dishwashers energy efficient?
A: Generally, yes. They use less water than handwashing a full sink. Since they are smaller, they heat less water per load compared to full-sized dishwashers.
Q: Can I put pots and pans in them?
A: Usually, no. These machines are designed for plates, cups, and silverware. Check the manufacturer’s capacity guide before trying to fit large cookware.
Q: How do I add the detergent?
A: Most units have a small compartment, just like a full-sized machine. You add powder or a small pod there before starting the cycle.
Q: How loud are these machines?
A: Noise levels vary. Look for models rated below 60 dB for quiet operation. They are usually a bit louder than full-sized built-in models.
Q: How long does a normal wash cycle take?
A: A standard cycle typically runs between 60 and 90 minutes, including washing and drying time.
Q: What is the difference between a tank model and a non-tank model?
A: A non-tank model *must* be hooked up to a faucet for water intake. A tank model stores the water you pour in, offering more placement flexibility.
Q: Do they clean well?
A: Yes, when used correctly. They use high-pressure spray jets. Make sure you scrape off large food chunks first for the best results.
Q: How do I clean the water tank?
A: You should drain any leftover water after use to prevent mold. Once a month, run a cleaning cycle using vinegar or a dishwasher cleaner to keep the tank fresh.