Answering buyers seeking a practical, long-lasting 20 ft stock tank solution, these options prioritize durability, size variety, and value for outdoor needs. This guide focuses on tanks that are well-suited for livestock water, feed storage, or large DIY pool projects, plus cover options to protect them year-round. The top picks are best for commercial-grade use, hobby farms, and anyone needing robust, weather-resistant stock tanks.
Summary of selected products:
| Product | Brand | Capacity | Best For |
|---|---|---|---|
| Stock Tank, 150-Gallons | Rubbermaid Commercial Products | 150 gallons | Heavy-duty exposure, livestock water, and easy maintenance |
| 30 Gallon Aqua Stock Tank | High Country Plastics | 30 gallons | Durable, compact water troughs for small setups |
| Stock Tank, 300-Gallons | Rubbermaid Commercial Products | 300 gallons | Large-scale water/fodder storage, outdoor use |
| Winter Pool Cover for 20–22 ft Tanks | iBirdie | 20–22 ft pool cover | Protection for large round stock tanks in winter |
| 50-Gallon Stock Tank | Rubbermaid Commercial Products | 50 gallons | Medium-duty, versatile for smaller setups |
Rubbermaid 150-Gallon Structural Foam Stock Tank

The Rubbermaid Commercial 150-gallon stock tank is built for harsh outdoor conditions with rigidcell construction. It is designed for durability in all weather and comes with a category-leading 10-year warranty. This tank is made in the USA, signaling strong local manufacturing standards. Best for buyers needing a robust, mid-to-large capacity trough for livestock water, feeding, or tough outdoor cleaning tasks. Caution: larger size means heavier handling and installation considerations on uneven ground.
Rubbermaid 300-Gallon Structural Foam Stock Tank

This 300-gallon model offers massive capacity with the same durable structural foam construction that Rubbermaid is known for. It is ideal for large livestock operations, outdoor ponds, or situations requiring substantial water or feed storage. Best for buyers who need a long-lasting, high-capacity tank for outdoor use. A clear limitation is the weight and space required for installation and transport, making it less suited for compact setups.
High Country Plastics 30 Gallon Aqua Stock Tank

High Country Plastics offers a compact, durable 30-gallon Aqua stock tank. Its impact-resistant poly construction helps absorb force without cracking, and the aqua green color provides a distinct look for yard setups. Best for small to medium operations needing a sturdy, portable trough. Caution: the color option is limited to a single tone, and some buyers may want larger capacities for growing herd needs.
Husky EagleFlow 20 ft Farm Tank Hose

Husky’s EagleFlow hose is a support accessory for farm tanks, designed for agricultural and industrial applications with thorough inspection for electrical continuity. Best for buyers who need reliable hose solutions to distribute water or liquids in farm settings. Considerations: this is not a tank itself, but a compatible accessory for large systems where hoses are required to link multiple tanks or supply points.
Rubbermaid 50-Gallon Structural Foam Stock Tank

The 50-gallon Rubbermaid stock tank delivers the same durable rigidcell construction in a more compact footprint. It is well suited for smaller premises, pet cleaning duties, or as a convenient secondary trough. Best for buyers needing an affordable, lighter option that still withstands weather exposure. Limitation: lower capacity means more frequent refilling for large livestock operations.
Buying Guide: Key Considerations For Choosing A 20 Ft Stock Tank Solution
- Intended use and capacity: Match tank size to herd size, water needs, and whether you plan to use it for feed storage, washing, or as a pool substitute.
- Durability and construction: Structural foam tanks with a rigidcell design resist weather and maintain shape. Steel or metal alternatives may corrode in outdoor environments.
- Maintenance and cleaning: Look for smooth interiors and large openings for easy scrubbing, plus a challenging-to-crack surface to minimize repairs.
- Weight and installation: Large volumes add weight; ensure stable ground, level footing, and proper anchoring where needed.
- Warranty and country of manufacture: A long warranty and USA-made products can indicate robust quality and service support.
- Accessories: Hoses, covers, and lids can extend lifespan and improve usability in winter or dusty environments.
- Weather considerations: For climates with freezing temperatures, choose tanks with appropriate frost resistance or plan for winterization.
Frequently Asked Questions
- What size stock tank should I choose for a small farm? – For small settings, 30-50 gallons can suffice for water or cleaning tasks, while larger operations may require 150–300 gallons or more depending on livestock numbers.
- Are stock tanks suitable as portable pools? – Some stock tanks can be repurposed as outdoor tubs or pools, but confirm fit, deck height, and safety considerations for human use before immersion.
- What material is best for outdoor use? – Structural foam tanks are praised for durability and lighter weight, with good resistance to cracking in varied weather; metal options may corrode without proper coating.
- Do these tanks come with warranties? – Many Rubbermaid commercial stock tanks include long warranties (often around 10 years) for durability and replacement coverage.
- Can I install a stock tank on uneven ground? – Uneven surfaces can cause tipping or cracking; prepare a level, stable base such as compacted gravel or a reinforced concrete pad.
- What maintenance tasks are recommended? – Regular cleaning, inspecting for cracks, checking the hardware that secures lids or covers, and ensuring hoses are in good condition.