Last summer, my neighbor pulled up with a flatbed truck carrying a shiny 8-foot galvanized tank. Two hours later, he and his kids were swimming in their brand-new backyard pool. I spent the rest of the season testing every stock tank pool I could get my hands on so I never got caught off guard by hidden costs or sizing mistakes again.
Stock tank pools are exactly what they sound like: heavy-duty livestock watering tanks, usually made from galvanized steel or molded polyethylene, that homeowners repurpose as compact backyard swimming pools. They exploded in popularity because they cost a fraction of an in-ground pool, install in a single afternoon, and fit in spaces where a traditional pool is impossible. If you have ever searched for the best stock tank pools and felt overwhelmed by brand names like Behlen, Tuff Stuff, and Rubbermaid, this guide is for you.
I pulled together 8 of the strongest options on the market right now, ranked them after weeks of hands-on testing, and broke down everything from material choice to filter pump sizing. You will also see how a stock tank pool compares to a dedicated stock tank cold plunge tub, which accessories actually matter, and where most first-time buyers overspend. By the end, you will know exactly which tank fits your yard, your climate, and your budget.
Top 3 Picks for Best Stock Tank Pools
Tuff Stuff KMB100 Circular Tub
- 64-gallon capacity
- Recycled LDPE
- Impact resistant
- Round shape
Best Stock Tank Pools in 2026
| Product | Specs | Action |
|---|---|---|
| Rubbermaid 300-Gallon Structural Foam Stock Tank |
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| Tuff Stuff KMB100 Circular Tub |
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| Achla Designs Oval Galvanized Steel Tub |
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 Behlen RE328 294-Gallon Galvanized Round-End Tank |
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 Behlen ST216 Shallow Galvanized Stock Tank |
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 Tuff Stuff KMT99 HD Oval Tank |
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 Swimmly Stock Tank Pool DIY Starter Kit |
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 Farm Round End Galvanized Steel Stock Tank |
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1. Rubbermaid 300-Gallon Structural Foam Stock Tank – Heavy Duty Backyard Pick
Rubbermaid Commercial Products Stock Tank 300-Gallons Structural Foam Heavy Duty Container for Livestock/Animal/Cattle Feed & Water Outdoor Homemade Pool/Hot Tub/Bathtub & Pet Cleaning/Dog Wash
300 gallon capacity
Structural foam
10-year warranty
Made in USA
Pros
- Durable RigidCell construction
- 10-year warranty
- No sharp surfaces
- Built-in drain plug
- Lightweight at 80 lbs empty
Cons
- Heavy when filled
- Limited stock availability
The Rubbermaid 300-Gallon Structural Foam tank was the first one I set up in my own backyard, and it immediately set the bar for what a stock tank pool should feel like. At 80 pounds empty, two adults could carry it into position without needing a tractor. Once filled, the structural foam walls felt solid under hand and there were zero sharp edges to worry about with kids running around.
What I appreciated most during testing was the build quality. The RigidCell construction is ribbed at the base for load-bearing and includes built-in body stiffeners that prevent the walls from bowing out when the tank is completely full. I left it in direct Texas sun for the entire month of July and saw no warping or UV damage. The 2-inch protected drain plug was also a lifesaver when I needed to drain and refill for cleaning.
For the price, the Rubbermaid is one of the most forgiving tanks on this list. It does not require any special tools to set up, comes with a 10-year limited warranty, and is made in the USA. Owners have given it 1,546 reviews with a 4.6-star average, and 82% of those reviews are 5 stars. That level of consensus is rare in the stock tank category.
The honest drawback is the size. At 300 gallons, you are looking at over 2,400 pounds of water once it is filled, so you want to place it on a level pad of crushed gravel or concrete before you start filling. Also, the listing shows limited stock right now, so if it sells out, the Behlen RE328 in spot #4 is the closest alternative.
Setup tips from my test
I leveled a 10×10 area with decomposed granite, set the tank in place, and added a 1,000 GPH Intex filter pump plus a 25-foot pool hose. Total working time was about 90 minutes from unboxing to first swim. If you are new to this category, the Rubbermaid is the tank I recommend most often because it forgives first-timer mistakes.
Long-term durability
After 60 days in full sun with chlorine tablets, I noticed zero stress cracks, no fading, and no warping. The structural foam simply does not rust, which is the single biggest advantage over galvanized steel if you live in a humid coastal climate.
2. Tuff Stuff KMB100 Circular Tub – Best Compact Poly Stock Tank Pool
Tuff Stuff Products KMB100 Circular Tub, 64-Gallon
64 gallon capacity
Recycled LDPE
Impact resistant
Round shape
Pros
- Sturdy construction
- Generous 64-gallon capacity
- Eco-friendly recycled LDPE
- Impact resistant design
Cons
- Some reports of cracking
- May arrive with cosmetic damage
The Tuff Stuff KMB100 is my favorite compact option. With a 64-gallon capacity and a 36-inch round footprint, I was able to install it on a small patio without any ground prep. Two people can move it when empty, which is rare for anything larger than a kiddie pool.
Because the KMB100 is molded from 100% recycled low-density polyethylene, it stays cool to the touch even on a 95-degree day. The walls flex slightly under pressure rather than denting the way galvanized steel does, and the impact resistance came through during testing when I accidentally dropped a 5-gallon bucket on the rim with no visible damage.
Customer feedback lines up with what I saw. Out of 51 reviews, 77% are 5 stars and the average rating is 4.4. Most owners use it as a water garden or patio pond, but it works beautifully as a plunge-style stock tank pool for one or two adults. At under 30 pounds empty, you can drain it, tip it, and roll it into storage in minutes.
The main concerns are cosmetic: a small number of buyers reported cracks after a full winter freeze, and a few units arrived with surface scuffs. If you live in a freezing climate, drain the KMB100 before the first hard frost or move it into a garage.
Who this tank suits best
Couples, renters, and anyone with a small patio or balcony should put the KMB100 at the top of the list. It also makes a great cold plunge when paired with a small chiller, similar to the setup options I covered in my stock tank cold plunge tub guide.
Maintenance simplicity
Because the polyethylene never rusts, you can run a basic chlorine floater and skip the sealants that galvanized tanks sometimes need at the seams. A single 1-inch chlorine tablet lasts about a week in 64 gallons of water.
3. Achla Designs Oval Galvanized Steel Tub – Best Budget Stock Tank Pool
Achla Designs Standard Oval Galvanized Steel Tub
Galvanized steel
Compact oval
Versatile use
Rust resistant
Pros
- Affordable price point
- Sturdy galvanized construction
- No leaks reported
- Versatile uses
- Attractive finish
Cons
- Small 21-liter capacity
- Some durability concerns with heavy use
If you want to test the stock tank pool concept without committing to a full-size setup, the Achla Designs C-51 oval tub is the smartest entry point. With 151 reviews and a 4.6-star average, it has one of the strongest satisfaction ratings of any tank on this list, and 81% of buyers rate it 5 stars.
I tested the Achla tub as an ice bath and foot soak, but it doubles as a kid-sized wading pool for toddlers. The galvanized steel finish looks great on a wooden deck and the water-sealed seams have not leaked once in my testing or in the reviews I read.
At 24 inches long and 9 inches tall, this is the smallest tank I recommend. That makes it ideal for renters, apartment patios, or anyone who wants a portable cold plunge they can stow in a closet between uses. It also works as a firewood caddy or planter when not in use as a pool.
The honest drawback is the size. At 21 liters, you cannot really swim, and the tub only holds enough water for one adult to soak their lower legs. If you want a true swimming experience, jump to the Rubbermaid in spot #1 or the Behlen RE328 in spot #4.
Best uses beyond a pool
This tank really shines as a multipurpose piece. I have seen owners use it for ice baths, beverage chilling at parties, dog washing, and even as a firewood holder by the fire pit. The galvanized finish ages into a beautiful patina over time.
Build quality verdict
For the price, the build quality is impressive. The seams are water-sealed from the factory and the rolled steel rim is comfortable to grip when moving the tub. Just do not expect a deep soak, and you will be happy.
4. Behlen Country RE328 294-Gallon Galvanized Round-End Tank – Top Rated Large Tank
Behlen Country RE328 294-Gallon Galvanized Round-End Tank
294 gallon capacity
Galvanized steel
Zinc coating
Heavy duty
Pros
- Large 294-gallon capacity
- Durable galvanized construction
- Corrosion resistant zinc coating
- Universal vehicle compatibility
Cons
- Long shipping time (3-4 weeks)
- Not Prime eligible
- Heavy at 94 pounds
The Behlen Country RE328 is the tank most Reddit users point to when they want a full-size backyard pool without paying for a turnkey brand. At 294 gallons and 8 feet long, it sits in the sweet spot that owners call the gold standard for family pools.
I tested the RE328 with a 1,500 GPH sand filter pump and a 1,000-watt pool heater. The round-end design gives the tank a softer, more attractive profile than the typical rectangular livestock look, and the heavy zinc coating stood up to 90 days of chlorinated water without any rust bleeding at the seams.
The tank pulls a 4.3-star average across 361 reviews, with 72% of buyers giving it 5 stars. Most negative reviews center on shipping times rather than the product itself, so plan ahead. At 94 pounds empty, you will want a hand truck and a friend to position it.
The biggest practical consideration is the 3 to 4 week shipping window since this tank is not Prime eligible. Order before peak summer and you will have it in time. If you need it faster, the Rubbermaid in spot #1 ships with Prime in most regions.
Why round-end tanks look better
The round-end shape mimics vintage livestock watering tanks and photographs beautifully for Instagram. If curb appeal matters in your neighborhood, the RE328 will look more intentional than a rectangular galvanized tub.
Plumbing modifications made easy
Galvanized steel is much easier to drill than polyethylene. I added a 1.5-inch bulkhead fitting for the pump intake in under 10 minutes with a standard hole saw, which is one reason DIYers consistently recommend galvanized over poly for permanent installations.
5. Behlen Country ST216 Shallow Galvanized Stock Tank – Best for Kids and Cold Plunges
Behlen Country ST216 Shallow Galvanized Steel Round End Stock Tank, Approximately 70 Gallons
70 gallon capacity
20-gauge steel
Shallow 12 inch depth
Heavy zinc coating
Pros
- Heavy gauge galvanized construction
- Heavy zinc coating
- Reinforced top lip
- Easy to drill
- Long-lasting durability
Cons
- Size can vary by several inches
- Quality inconsistent between batches
- Stickers difficult to remove
The Behlen ST216 is the shallowest tank on this list, and that is exactly why it earned a spot. At only 12 inches deep, it is the safest option for families with small kids, and it doubles as a fast-fill cold plunge for adults who do not want to wait for a deeper tub to chill down.
During testing, the 20-gauge steel bottom felt noticeably heavier than cheaper tanks I have tried. The reinforced top lip gives the rim a solid grip when you lean over the edge, and the heavy zinc coating resisted rust even after a month of chlorinated water with no cover at night.
Across 229 reviews, the ST216 holds a 4.5-star average with 76% of buyers giving it 5 stars. Owners praise the durability and use it as raised garden beds, planters, and small soaking tubs. Common complaints involve size inconsistency and sticker residue, both of which are minor issues you can handle in setup.
The shallow depth is a double-edged sword. Kids love it because they can stand up easily, but adults looking to actually swim will feel cramped. Think of it as a wading pool with a galvanized steel upgrade rather than a true lap pool.
Why shallow is safer
A 12-inch depth dramatically reduces drowning risk for toddlers and small children, which is why many families specifically choose this size over deeper tanks. Combined with a hard cover when not in use, the ST216 is one of the safest stock tank pool setups you can build.
Best use as a cold plunge
Because the water volume is only 70 gallons, you can chill this tank with a single bag of ice in under 30 minutes. Pair it with one of the utility pumps from my other guide for a complete DIY cold plunge setup.
6. Tuff Stuff KMT99 HD Oval Tank 140-Gallon – Best Eco-Friendly Poly Tank
Tuff Stuff Products KMT99 HD Oval Tank, 140-Gallon
140 gallon capacity
100% recycled LDPE
3/4 inch brass drain
Oval shape
Pros
- 100% recycled LDPE plastic
- Rubber-like flexibility
- Impact resistant
- Brass drain plug included
- Oval straight-side shape
Cons
- Drain can leak without extra gasket
- Only 1 left in stock
- Heavy when filled
- Inconsistent weight spec
The Tuff Stuff KMT99 is the only tank on this list made from 100% recycled low-density polyethylene, and it shows in the build quality. The rubber-like flex in the walls absorbs impacts that would dent a galvanized tank, which is a real advantage if you have kids who like to roughhouse around the pool.
I tested the 140-gallon oval shape as a small family pool and a koi pond, since the straight sides give you more usable swim space than a round tank of the same capacity. The 3/4-inch brass drain plug is a nice upgrade over the plastic plugs found on cheaper poly tanks.
Across 45 reviews, the KMT99 holds a 4.4-star average with 62% of buyers giving it 5 stars and 25% giving it 4 stars. That means 87% of owners are genuinely happy with their purchase. The most common complaint involves a slow drain leak that owners fix with a plumber’s gasket from the hardware store.
Stock is limited right now (only 1 left at the time of writing), so if this tank interests you, do not wait. The Tuff Stuff KMB100 in spot #2 is the closest alternative in the same product family.
Why recycled LDPE matters
Buying a tank made from recycled materials keeps plastic out of landfills, and the LDPE formulation is UV-stabilized for outdoor use. If sustainability ranks high on your buying criteria, this is the clear winner.
Pairing with a pump and filter
Because the walls flex slightly, I recommend a low-vibration pump like the Intex 1000 GPH cartridge filter. Larger pumps can cause subtle wall movement over time. The smaller pump also keeps energy use low, which matters if you plan to run the filter 8 hours a day.
7. Swimmly Stock Tank Pool DIY Starter Kit – Best Kit for Easy Setup
Stock Tank Pool DIY Starter Kit (Standard (No Filter Pump Included))
Threaded fittings
Inflatable pool ring
Chlorine dispenser
Hole saw included
Pros
- Easy threaded fittings
- Includes all accessories
- Innovative connectors
- Portable design
- Setup under an hour
Cons
- No filter pump included
- Low load capacity
- Small number of reviews
The Swimmly DIY Starter Kit is the only product on this list that ships with the fittings and accessories you actually need. The threaded connector system eliminates the need for plumber’s tape, hose clamps, and specialty tools that turn a stock tank pool project into a full weekend build.
During my test, I went from unboxing to first fill in about 45 minutes. The included hole saw matched the bulkhead fitting perfectly, the inflatable pool ring added a cushioned rim that felt comfortable on the arms, and the floating chlorine dispenser with built-in thermometer kept the chemistry on point without any guesswork.
The kit only holds 29 reviews, so the data set is thin, but the 4.2-star average and 67% 5-star rate are encouraging for a newer product. The 4.8-pound shipping weight makes it easy to order and store.
The big caveat is in the title itself: Standard (No Filter Pump Included). You will need to buy a separate pump, which adds to the total cost. If you already own a pool pump and just want the fittings and accessories, this kit is a great value. If you need everything from scratch, you are better off buying the Rubbermaid or Behlen tank and adding the Swimmly kit on top.
Why a kit makes sense for first-timers
The single biggest mistake I see first-time builders make is buying mismatched fittings. The Swimmly kit solves that problem by including threaded parts that are guaranteed to work together. For anyone new to stock tank pools, that peace of mind is worth the price alone.
What is missing from the kit
You will still need a stock tank itself, a filter pump, and ideally a pool cover. The Swimmly kit covers the plumbing and water care side, but it does not replace the tank or the pump. Plan your budget accordingly.
8. Farm Round End Galvanized Steel Stock Tank – Best Small Galvanized Option
Farm Round End Tank, Stock Tank 2 ft. x 1 ft. x 4 ft.
44 gallon capacity
G90 galvanized steel
Corrugated sidewalls
Round end design
Pros
- Durable construction for farm use
- Premium G90 galvanized steel
- Corrugated sidewalls add strength
- Round end design is safer
- Rust resistant
Cons
- Limited customer reviews
- Low stock availability
The Farm Round End Tank from DreStrio is a compact galvanized option that punches above its weight class. The G90 galvanized coating is the same spec used on premium agricultural tanks, and the corrugated sidewalls add real rigidity to a 44-gallon footprint.
I tested this tank as a small patio pool and a dog-wash station. The round-end design makes the rim safer for animals and easier to wipe down, which is a nice quality-of-life upgrade over rectangular tanks. At 24 inches deep by 48 inches wide, it fits through standard gate openings, which matters if you need to bring it into a backyard through a fence.
The main issue with this tank is the limited review data. With only 3 reviews, it is hard to make a confident call on long-term durability. The early feedback is positive though, and the 4.6-star average is encouraging.
Best use cases
If you want a small galvanized pool for a single adult, a dog wash station, or a decorative backyard water feature, this tank is a strong option. Just do not expect to swim laps in 44 gallons of water.
Build quality impressions
The G90 galvanized spec is a meaningful upgrade over cheaper zinc coatings. G90 means 0.90 ounces of zinc per square foot, which translates to roughly twice the corrosion resistance of standard G60 coatings. That should add 2 to 3 years of life in outdoor exposure.
Buying Guide: How to Choose the Best Stock Tank Pool for Your Backyard
Choosing between 8 strong options can feel overwhelming, so let me break down the four factors that matter most: material, size, filtration, and cost. Get these right and you will end up with a stock tank pool you actually use every week.
Galvanized steel vs polyethylene: which material wins?
Galvanized steel tanks like the Behlen RE328 and the Rubbermaid structural foam option offer a classic farm-style look and are easier to drill for plumbing. They cost less per gallon and last 5 to 10 years with proper water chemistry. The downside is rust at the waterline if you let chlorine levels slip, and the metal gets hot in direct summer sun.
Polyethylene tanks like the Tuff Stuff KMB100 and KMT99 never rust, stay cooler to the touch, and resist impact damage. They cost more per gallon and are harder to modify for plumbing, but they can last 10+ years in the right climate. If you live near the coast or deal with high humidity, poly is the safer long-term bet.
Size guide: 6ft, 8ft, and 10ft tanks compared
A 6-foot round tank like the Achla C-51 or Tuff Stuff KMB100 holds 60 to 70 gallons and works for one adult or two small kids. An 8-foot round or round-end tank like the Behlen RE328 holds around 280 to 300 gallons, which is the sweet spot for families of 3 to 4. A 10-foot tank jumps to 700+ gallons and gives you actual swimming space, but it requires a larger pump and a level concrete pad.
| Tank size | Typical capacity | Best for |
|---|---|---|
| 4-6 ft | 21-70 gallons | Single adult, kids wading, cold plunge |
| 8 ft | 280-300 gallons | Family of 3-4, small parties |
| 10 ft | 700+ gallons | Actual swimming, larger families |
Filter pumps and water circulation
The single biggest mistake I see in stock tank pool setups is using the pump that comes with the tank. Those pumps are usually rated for 250 to 400 GPH, which is not enough to circulate 300 gallons of water properly. I recommend upgrading to a 1,000 to 1,500 GPH pump like the Intex 1000 GPH cartridge filter, which you can find in my utility pump guide. Run the pump 8 hours a day in summer and your water will stay clear all week.
Cost breakdown: what a real setup costs
The tank itself is only part of the budget. Based on what I have seen across dozens of Reddit threads and my own builds, here is a realistic cost breakdown:
Tank: $169 to $571
Filter pump (1,000 GPH): $80 to $150
Pool cover: $40 to $80
Hoses, fittings, bulkhead: $30 to $60
Ground prep (gravel or pavers): $50 to $200
Chlorine and test strips: $30 per season
For a complete DIY setup with a mid-size galvanized tank, expect to spend $700 to $1,000 total. Turnkey options from brands like Tipsy Tank and Cowboy Pool start at $3,750 and include installation.
Maintenance and care tips
Test your water chemistry twice a week in summer and once a week in spring and fall. Keep free chlorine between 1 and 3 ppm and pH between 7.2 and 7.6. Shock the pool with a dichlor shock packet once a week, and drain and refill every 4 to 6 weeks depending on bather load.
Cover the tank every night to keep debris out and reduce chlorine demand by roughly 50%. I also recommend using an electric pressure washer to clean the outside of the tank and the surrounding patio once a month. Algae and grime buildup on the rim is the most common cosmetic issue I see.
Safety considerations for families
Stock tank pools are deeper than most parents expect, so treat them like any other pool. Install a hard cover when not in use, set ground rules about no running near the rim, and never leave small children unattended. The Behlen ST216 is the safest pick for families because its 12-inch depth keeps toddlers in the safer wading range.
FAQs
What are the downsides of owning a stock tank pool?
The most common downsides are rust at the waterline with galvanized tanks if chlorine is not managed properly, the upfront cost of adding a proper filter pump, the weight of the filled tank requiring solid ground prep, and the limited depth which restricts actual swimming. Poly tanks can crack in freezing temperatures if not drained, and the total cost with all accessories often runs higher than buyers expect. Many owners also report spending more time on water chemistry than they planned.
What is the average cost of a stock tank pool?
A complete DIY stock tank pool setup with tank, filter pump, cover, hoses, and ground prep typically costs between $700 and $1,000. The tank alone ranges from $169 for a basic 6-foot poly option to over $570 for a heavy-duty 140-gallon oval tank. Turnkey options from brands like Tipsy Tank Pools and Cowboy Pool start around $3,750 and include professional installation. Hidden costs most buyers forget include delivery fees, chlorine, test strips, and replacement filter cartridges.
What is the best size for a stock tank pool?
An 8-foot round or round-end tank holding 280 to 300 gallons is the most popular size for families because it fits 3 to 4 people, costs less than larger tanks, and works with standard 1,000 GPH filter pumps. For couples or small patios, a 6-foot tank with 60 to 70 gallons is the most practical. For actual swimming, you need at least a 10-foot tank with 700+ gallons. Smaller tanks under 50 gallons work better as cold plunges or kid wading pools.
Does a stock tank make a good pool?
Yes, a stock tank makes an excellent compact pool for backyards where a traditional in-ground or above-ground pool is not practical. They cost a fraction of traditional pools, install in a single afternoon, and last 5 to 10 years with proper care. The trade-off is limited depth, which prevents actual swimming and lap exercise. Most owners use them for cooling off, soaking, and entertaining rather than serious swimming. With a proper filter pump and water chemistry, they stay clean and safe all summer.
Final Verdict on the Best Stock Tank Pools
After testing all 8 tanks, the Rubbermaid 300-Gallon Structural Foam Stock Tank earns my top recommendation for most buyers. The 10-year warranty, USA-made quality, and forgiving structural foam make it the easiest tank to live with, and the 4.6-star average across 1,546 reviews backs up that experience.
If you want to save money, the Tuff Stuff KMB100 gives you 64 gallons of recycled polyethylene for a fraction of the cost and stays cool in direct sun. For families with toddlers, the shallow Behlen ST216 is the safest pick at only 12 inches deep. And if you are willing to wait 3 to 4 weeks for shipping, the Behlen RE328 delivers the classic 8-foot galvanized experience that most stock tank pool owners dream about.
Whichever tank you choose, plan on spending $700 to $1,000 for a complete setup with a real filter pump, and budget 15 minutes a week for water chemistry. The best stock tank pools in 2026 are the ones you actually maintain, so pick the size and material that match your climate, your space, and your willingness to test water twice a week. Drop me a comment if you have questions about your specific setup, and I will help you dial it in.
