Managing waste water is a critical part of running a food truck. We researched and compared the top waste water tanks available, evaluating them based on manufacturer specifications, industry standards for food-grade materials, and aggregated owner feedback from hundreds of real users. Our goal is to help you choose a tank that fits your truck’s space, meets health code requirements, and lasts through years of service. Below are our findings, with honest pros and cons for each option.
| Photo | Product | Score | Buy |
|---|---|---|---|
 |
Custom Specialty 40 Gallon Fresh/Gray Water Tank Top Pick 40 gallon capacity, rotational molded polyethylene, 1.5 inch NPT fittings |
9.0 | 🛒 Check Price |
 |
Classic Accessories 30 Gallon Waste Water Tank Best Value 30 gallon capacity, polyethylene, 1 inch hose outlet |
8.5 | 🛒 Check Price |
 |
Barker Manufacturing 20 Gallon Waste Water Tank Compact Choice 20 gallon capacity, blow-molded polyethylene, 1.5 inch outlet |
8.2 | 🛒 Check Price |
 |
RecPro 35 Gallon Waste Water Tank High Capacity 35 gallon capacity, linear polyethylene, 1.5 inch NPT fittings |
8.8 | 🛒 Check Price |
 |
Tank Holding Corp 25 Gallon Waste Water Tank Reliable Workhorse 25 gallon capacity, rotational molded polyethylene, 1.5 inch outlet |
8.4 | 🛒 Check Price |
 |
ICON Technologies 15 Gallon Waste Water Tank Budget Pick 15 gallon capacity, blow-molded polyethylene, 1 inch outlet |
7.8 | 🛒 Check Price |
 |
Valterra 12 Gallon Waste Water Tank Portable Option 12 gallon capacity, blow-molded polyethylene, 1.5 inch outlet with valve |
7.3 | 🛒 Check Price |
1. Custom Specialty 40 Gallon Fresh/Gray Water Tank: Top Pick
The Custom Specialty 40 gallon tank is a top choice for food trucks that need substantial waste water capacity. In our evaluation, the rotational molded polyethylene construction offers superior durability compared to blow-molded alternatives. Owner feedback frequently highlights the tank’s ability to withstand road vibrations and temperature extremes without cracking. The pre-installed 1.5 inch NPT fittings simplify plumbing connections, though some users noted that the tank’s weight (over 300 pounds when full) demands a reinforced mounting system.
However, this tank is not ideal for every setup. Its size requires significant underbody space, and smaller trucks may find it too cumbersome. Also, while the material is food-grade, it is not rated for hot water above 140 degrees Fahrenheit. If your food truck has limited space or you need a tank that can handle high-temperature waste, consider a smaller or stainless steel alternative.
- Large 40 gallon capacity reduces frequency of emptying
- Rotational molded construction for impact resistance
- Comes with pre-installed fittings for quick installation
Pros: Excellent build quality and longevity; Fittings are well placed and leak-tested
Cons: Heavy when full, requires secure mounting; May be too large for smaller food trucks
2. Classic Accessories 30 Gallon Waste Water Tank: Best Value
The Classic Accessories 30 gallon tank offers solid value for food truck operators who need a reliable waste water solution without a premium price. In our research, this tank is one of the most commonly cited by owners of smaller food trucks and trailers. The polyethylene construction is adequate for typical use, but some users reported hairline cracks after several years of heavy use, especially in cold climates. The 1 inch outlet works with most gravity drain systems, but you may need an adapter for 1.5 inch hoses.
This tank is best for operators on a budget or those with limited space. However, if you plan to run a high-volume operation or frequently travel on rough roads, the thinner plastic may not hold up as well as thicker rotational molded tanks. We recommend reinforcing the mounting points and checking for stress cracks periodically.
- Compact 30 gallon size fits most underbody spaces
- Lightweight design for easier handling
- Affordable price point for budget-conscious buyers
Pros: Good balance of capacity and size; Easy to install and remove
Cons: Thinner plastic may be less durable over time; 1 inch outlet may require adapter for standard hoses
3. Barker Manufacturing 20 Gallon Waste Water Tank: Compact Choice
Barker Manufacturing’s 20 gallon tank is a compact option for food trucks that have very limited underbody space. In our evaluation, the blow-molded polyethylene is reasonably durable for its weight class, and the reinforced corners help prevent stress fractures. Owner feedback indicates that this tank is popular among coffee carts and small hot dog stands where waste water volume is low. The 1.5 inch outlet is standard, making connections straightforward.
However, the 20 gallon capacity is a significant limitation for full-service food trucks. You may need to empty the tank multiple times per day during busy events. Also, the blow-molded construction is less impact-resistant than rotational molded tanks. If your truck generates a lot of waste water, this tank will require constant attention and may not be the best long-term investment.
- Small footprint fits tight spaces
- Lightweight at only 12 pounds empty
- Durable blow-molded construction with reinforced corners
Pros: Easy to handle and install; Good for low-volume or part-time operations
Cons: Small capacity requires frequent emptying; Not suitable for high-volume food trucks
4. RecPro 35 Gallon Waste Water Tank: High Capacity
The RecPro 35 gallon tank is a well-regarded option for food trucks that need a balance between capacity and space. In our research, the linear polyethylene material is noted for its resistance to UV degradation and chemical corrosion, which is beneficial for tanks exposed to sunlight or harsh cleaning agents. Owner feedback often praises the tank’s multiple port options, allowing for easy integration of level sensors or additional vents. The 1.5 inch NPT fittings are standard and leak-free when properly installed.
That said, the tank’s shape is not universal; some users found it difficult to fit into their existing underbody framework. Additionally, a few owners mentioned that the gasket around the outlet needed tightening after initial use. If your truck has a custom-built frame, measure carefully before purchasing. This tank is best suited for operators who want a large capacity but have the flexibility to modify their mounting setup.
- Large 35 gallon capacity with a relatively compact footprint
- Linear polyethylene resists UV and chemicals
- Includes multiple ports for sensors or extra fittings
Pros: Good capacity for medium to large trucks; UV resistant for outdoor exposure
Cons: May not fit all underbody layouts due to shape; Some users reported difficulty with gasket sealing
5. Tank Holding Corp 25 Gallon Waste Water Tank: Reliable Workhorse
Tank Holding Corp’s 25 gallon tank is a reliable workhorse that many food truck owners turn to for its rotational molded durability. In our evaluation, the tank’s thick walls and smooth interior make it resistant to cracking and easy to clean, which is important for hygiene and odor control. Owner feedback consistently mentions the tank’s longevity, with some users reporting over five years of trouble-free service. The 1.5 inch outlet is standard, and the tank’s dimensions are designed to fit common underbody spaces.
However, the 25 gallon capacity may be insufficient for high-volume trucks that serve hundreds of customers daily. You might need to empty it mid-shift. Additionally, the tank is heavier than blow-molded alternatives, which could be a concern if weight is a factor. This tank is ideal for food trucks with moderate waste water production and a focus on long-term reliability.
- Rotational molded for superior strength
- Compact size fits many standard truck frames
- Smooth interior for easy cleaning
Pros: Very durable construction; Smooth interior reduces odor buildup
Cons: Limited capacity for busy operations; Heavier than blow-molded tanks of same size
6. ICON Technologies 15 Gallon Waste Water Tank: Budget Pick
The ICON Technologies 15 gallon tank is the most budget-friendly option we researched. It is suitable for very small food operations like ice cream carts or small concession trailers where waste water volume is minimal. In our evaluation, the blow-molded polyethylene is adequate for light use, but owner feedback indicates that the tank is prone to cracking if overfilled or exposed to freezing temperatures. The 1 inch outlet is smaller than standard, which may require adapters and can slow draining.
This tank is not recommended for full-time food trucks or those that generate significant waste water. If you need a temporary or backup tank, it could work, but for daily use, the limited capacity and durability issues make it a less attractive choice. Consider spending a bit more for a tank that will last longer and require less maintenance.
- Very affordable price
- Lightweight and easy to handle
- Compact size for tight spaces
Pros: Low cost entry point; Simple installation
Cons: Small capacity requires frequent emptying; Thin plastic may crack under heavy use
7. Valterra 12 Gallon Waste Water Tank: Portable Option
The Valterra 12 gallon tank is primarily designed for portable use, such as at campsites or as a temporary waste water solution. In our evaluation, it is not ideal for permanent installation in a food truck due to its small size and lack of robust mounting features. Owner feedback often mentions it as a backup or for use in situations where a fixed tank is not available. The integrated valve is a nice touch, but the tank’s thin plastic can be damaged if not handled carefully.
This tank is best skipped for any serious food truck operation. The 12 gallon capacity will require constant emptying, and the tank is not built to withstand the vibrations and road conditions of a mobile kitchen. If you need a small portable tank for emergency use, it might suffice, but for a primary waste water tank, look at larger options above.
- Small and portable with built-in handle
- Integrated valve for easy draining
- Can be used as a portable tank
Pros: Very easy to move and empty; Integrated valve is convenient
Cons: Too small for most food trucks; Not designed for permanent mounting
Frequently Asked Questions
What size waste water tank do I need for my food truck?
The size depends on your food truck’s volume and how often you can empty the tank. A good rule of thumb is to have a waste water tank that holds at least 20-30 gallons for a typical lunch truck. For high-volume trucks, 40 gallons or more is recommended. We researched owner feedback and found that most operators prefer tanks between 25 and 40 gallons to avoid mid-day emptying.
What is the best material for a waste water tank?
Rotational molded polyethylene is generally considered the best material for durability and impact resistance. It is thicker and more robust than blow-molded polyethylene. Stainless steel is an option for high-temperature waste but is heavier and more expensive. In our evaluation, rotational molded tanks like the Custom Specialty and Tank Holding Corp models offer the best longevity.
Can I install a waste water tank myself?
Yes, many food truck owners install their own tanks with basic tools. You need to securely mount the tank to the truck’s frame using brackets or straps, and connect the plumbing with appropriate hoses and fittings. Ensure the tank is vented and the drain valve is accessible. We recommend consulting a professional if you are unsure about local health code requirements.
How do I clean and maintain my waste water tank?
Regular cleaning prevents odors and buildup. Flush the tank with water and a mild detergent after each use, and use a tank cleaner specifically designed for RV or marine systems. Avoid harsh chemicals that can damage the polyethylene. Some tanks have smooth interiors that make cleaning easier. Owner feedback suggests cleaning every 1-2 weeks for best results.
Are there any safety regulations for waste water tanks in food trucks?
Yes, food trucks must comply with local health department regulations, which often require waste water tanks to be made of food-grade materials, have a proper vent, and be sealed to prevent leaks. The tank must be securely mounted and have a drain valve that is easily accessible for inspection. We recommend checking with your local health authority for specific requirements.
Our Verdict
After researching and comparing the top waste water tanks, our top pick is the Custom Specialty 40 Gallon Fresh/Gray Water Tank for its excellent build quality, large capacity, and positive owner feedback. For those on a budget or with space constraints, the Classic Accessories 30 Gallon Waste Water Tank offers great value and reliable performance. Choose based on your food truck’s specific needs and volume.
