The cowboy pool — a galvanized steel stock tank repurposed for swimming — went viral around 2019 and hasn't really stopped. The shipping container pool followed right behind it, offering a bigger, more permanent version of the same industrial-meets-backyard aesthetic. They share a design DNA but almost nothing else: different costs, different lifespans, different installation requirements, and very different use cases.
This guide covers both honestly — what each is actually like to own, where each one wins, and how to choose without regret.
Cowboy pool
Galvanized stock tank. 8–10ft diameter or rectangular. 2ft deep. Setup in an afternoon. Available at farm supply stores nationwide.
Container pool
Converted 20ft or 40ft shipping container. 4ft deep. Proper swimming pool experience. Permanent installation, full equipment package.
In this comparison
What is a cowboy pool?
A cowboy pool is a galvanized steel stock tank — originally manufactured for watering livestock — that's been repurposed as a backyard swimming pool. Stock tanks have been used this way informally for decades on farms and ranches across the American West. The viral moment around 2019 brought them to suburban and urban backyards nationwide.
The appeal is simple: they're cheap, immediately available at Tractor Supply Co., Rural King, and farm supply stores across the country, and they require no installation beyond finding a level spot and filling them with a hose. The galvanized steel exterior looks industrial and photogenic. A basic pump and filter kit keeps the water clean for around $100–$200.
The limitation is equally simple: they're about 2 feet deep and 8–10 feet in diameter. They're plunge pools and cooling pools, not swimming pools. You sit in them, you cool off, you don't swim laps.
Cost comparison — the real numbers
| Item | Cowboy pool | Container pool (DIY) | Container pool (kit/pro) |
|---|---|---|---|
| Tank / container purchase | $300–$2,000 | $1,500–$4,000 | Included in kit price |
| Pump and filter | $100–$300 | $800–$2,000 | Included |
| Interior lining / waterproofing | None needed (galvanized) | $800–$2,500 | Included |
| Deck / surround | $200–$1,500 (optional) | $1,500–$4,000 | $1,500–$4,000 (extra) |
| Delivery / crane | Not needed (you haul it) | $400–$1,200 | Included or quoted |
| Permits | Rarely required | Often required | Often required |
| Kit price (complete) | — | — | $31,770–$65,455 (Ecopool) / $36,995 (ReadyPool) |
| All-in total | $600–$3,500 | $5,000–$15,000 | $35,000–$70,000+ |
The cost gap between a cowboy pool and a container pool is significant at every tier. A $600 cowboy pool and a $50,000 Ecopool container pool are not really competing products — they serve different purposes. Where the comparison gets interesting is when you're deciding between a $3,000 cowboy pool setup and an $8,000–$12,000 DIY container pool.
Size and depth — the most important difference
Depth is where the cowboy pool loses the comparison for most buyers. A stock tank is typically 2 feet deep — enough to sit in and cool off, not enough to swim. Container pools run 4+ feet deep, which is a genuine swimming pool experience.
| Cowboy pool (round) | Cowboy pool (rectangular) | Container pool (20ft) | Container pool (40ft) | |
|---|---|---|---|---|
| Typical dimensions | 8–10ft diameter | 6×10ft to 8×16ft | 20×8ft | 40×8ft |
| Depth | 2ft | 2ft | 4ft+ | 4ft+ |
| Water volume | 700–1,500 gallons | 600–2,000 gallons | 8,000–10,000 gallons | 16,000–20,000 gallons |
| Can swim laps | No | No | Yes (short laps) | Yes (proper laps) |
| Good for kids under 6 | Yes | Yes | With supervision | With supervision |
| Good for adults cooling off | Yes | Yes | Yes | Yes |
2 feet of water is not a swimming pool
A stock tank at 2 feet deep is a plunge pool and cooling pool. You can't do a freestyle stroke, you can't tread water, and you can't jump in safely. If your goal is actual swimming — laps, learning to swim, exercise — a cowboy pool will disappoint. Container pools at 4ft deep are genuine swimming pools. Know which experience you're buying before spending anything.
Installation and setup
Cowboy pool setup
The cowboy pool's greatest advantage is setup simplicity. You buy the tank, haul it home (or have it delivered — most tanks fit in a pickup truck or on a flatbed trailer), find a level spot, and fill it with a hose. A basic pump-and-filter kit circulates the water. You're swimming the same afternoon you buy it.
- No crane required
- No permits in most jurisdictions (under 24 inches deep)
- No contractor needed
- Total setup time: 2–4 hours
- Can be moved if you change your mind or relocate
Container pool installation
A container pool is a construction project. Even an above-ground DIY installation requires a crane or forklift for placement, site preparation, electrical hookup (GFCI required by code), and usually a permit. An in-ground container pool involves excavation and a timeline measured in weeks.
- Crane rental: $400–$1,200
- Site prep and leveling: $500–$3,000
- Licensed electrician for GFCI hookup: $500–$1,500
- Permits: $200–$1,500 depending on jurisdiction
- Total setup time: 1–4 weeks for above ground; 4–8 weeks for in-ground
Lifespan and maintenance
| Cowboy pool | Container pool | |
|---|---|---|
| Structural lifespan | 10–20 years (galvanizing degrades) | 25–30+ years (Corten steel) |
| Rust risk | Yes — galvanizing wears over time, especially with chemicals | Low — Corten forms protective patina; painted exterior |
| Chemical sensitivity | High — chlorine accelerates galvanizing breakdown | Low — interior sealed from water contact |
| Liner replacement | Not applicable | Every 7–10 years (vinyl) or 5–8 years (epoxy) |
| Annual maintenance cost | $200–$600 | $1,200–$2,000 |
| Winter storage | Drain and move or cover — light enough to handle | Drain and winterize in place — not movable once installed |
The galvanizing on a stock tank is its Achilles heel. Pool chemicals — especially chlorine — accelerate galvanizing breakdown. Many cowboy pool owners use saltwater chlorination or UV systems specifically to reduce chemical demand and extend tank life. Even so, a cowboy pool is a 10–15 year product if well maintained. A container pool is a 25–30+ year installation.
Permits and regulations
This is where the cowboy pool's simplicity really shines. Because a standard round stock tank is under 24 inches deep, most jurisdictions don't classify it as a pool at all — which means no permit, no fencing requirement, and no inspection. You can buy one at Tractor Supply this afternoon and have it in your backyard by tonight.
Container pools almost always require permits once they're treated as permanent installations. In-ground containers trigger the same permit requirements as any inground pool. Above-ground containers often require permits once they exceed 24 inches in depth. Most jurisdictions also require a fence around any pool over 24 inches deep — which adds $1,500–$5,000 to the project cost.
Category-by-category verdict
Cost
A cowboy pool setup runs $600–$3,500 all-in. A container pool starts at $5,000 DIY and goes to $65,000+ for a premium kit. Not a close comparison.
Setup speed
Same-day setup vs 1–8 weeks for a container pool. If you need a pool for this weekend, only one option works.
Swimming depth
4ft vs 2ft. You can actually swim in a container pool. A cowboy pool is a cooling pool, not a swimming pool.
Lifespan
25–30+ years vs 10–15 years. Container steel outlasts galvanizing, especially when pool chemicals are involved.
Permits and regulations
Most cowboy pools need no permit. Container pools almost always do once installed permanently. Less red tape = faster enjoyment.
Airbnb / property value
A container pool is a permanent, photogenic amenity that shows up in listing photos. A cowboy pool is a plunge tub — notable but not a selling point.
Flexibility
Cowboy pools can be moved, repositioned, stored, or sold. A container pool is a permanent installation once craned into place.
Aesthetic
Both have the industrial backyard look that made them popular. Cowboy pools skew rustic; container pools skew modern-industrial. Equally photogenic in different ways.
Which one is right for you?
Choose a cowboy pool if:
- Your budget is under $3,000
- You want it this weekend, not next month
- You're renting and can't make permanent modifications
- You want something for cooling off, relaxing, and kids splashing — not lap swimming
- You live somewhere that only needs a pool for 3–4 months of the year
- You're not sure you'll want a pool long-term and want to try the lifestyle first
Choose a container pool if:
- You want to actually swim — laps, exercise, or teaching kids to swim
- You own your property and plan to stay for several years
- You want a permanent, property-value-adding amenity
- You're building an Airbnb or vacation rental and need a standout feature
- Your budget is $10,000+ and you want something that lasts decades
- You want the industrial aesthetic with actual swimming pool functionality
The upgrade path
Many people start with a cowboy pool and upgrade to a container pool later — using the cowboy pool as a low-commitment way to confirm they actually use and enjoy a backyard water feature before committing to a permanent installation. It's a reasonable sequence. The cowboy pool won't depreciate much; galvanized stock tanks hold their value and are easy to sell.
Frequently asked questions
What is a cowboy pool?
A cowboy pool is a galvanized steel stock tank — originally manufactured for watering livestock — repurposed as a backyard plunge pool. Standard sizes run 8–10 feet in diameter (round) or 6×10 to 8×16 feet (rectangular), typically 2 feet deep. They're available at Tractor Supply Co., Rural King, and farm supply stores nationwide for $300–$2,000 depending on size.
How long does a cowboy pool last?
A well-maintained galvanized stock tank used as a pool typically lasts 10–15 years. The main degradation factor is pool chemicals — chlorine accelerates the breakdown of galvanizing. Owners who use saltwater or UV systems instead of chlorine often report longer lifespans. Scratching or abrading the galvanized surface accelerates rust. Keep the interior smooth and the chemical demand low to maximize lifespan.
Can you put a pump and filter on a cowboy pool?
Yes — and you should. A basic intex-style pump and filter kit ($100–$300) keeps the water circulating and filtered. You'll need to drill a hole in the tank for the inlet and outlet fittings, which is straightforward with a step drill bit. Many owners also add a simple saltwater chlorinator ($200–$400) to reduce chemical demand and extend tank life. Without circulation, a cowboy pool turns green in days.
Is a cowboy pool deep enough to swim in?
No — not in the traditional sense. At 2 feet deep, you can sit, soak, and cool off, but you can't do a freestyle stroke or tread water. Children under about 4 years old can splash and play comfortably. If actual swimming is your goal, a container pool at 4+ feet deep is the minimum. A cowboy pool is a plunge pool and cooling pool, not a swimming pool.
Do you need a permit for a cowboy pool?
In most jurisdictions, no. Because a standard stock tank is under 24 inches deep, it typically doesn't meet the legal definition of a swimming pool and doesn't require a permit or fencing. However, regulations vary by county — always check with your local building department. HOA rules are a separate matter; some HOAs prohibit above-ground water features regardless of type.
What's the biggest cowboy pool you can buy?
The largest standard round stock tanks run about 10 feet in diameter. Rectangular stock tanks go up to about 8×16 feet. Beyond those sizes, you're looking at custom agricultural tanks that get expensive quickly. If you need more than 10 feet of width, a container pool or traditional above-ground pool is the more practical path.
Can you heat a cowboy pool?
Yes — and because they hold only 700–2,000 gallons (vs 8,000–20,000 for a container pool), they're actually cheap to heat. A small inline heater or heat pump sized for a hot tub will handle a stock tank efficiently. Many owners also use black exterior paint or a dark pool cover to absorb solar heat during the day, which can raise water temperature by 5–10°F in a sunny location without any electricity.
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