8 Simple Steps for Setting Up a Backyard Stock Tank Pool

Transforming a rugged steel stock tank into a pristine backyard oasis is one of the most rewarding DIY projects a water enthusiast can undertake. However, achieving that crystal-clear, leak-free soak requires moving past basic farmyard utility and embracing proper pool filtration and plumbing. Selecting the right gear from the start saves hours of frustration and ensures a safe, refreshing retreat all summer long.

Disclosure: As an Amazon Associate, this site earns from qualifying purchases. Thank you!

Choosing the Perfect Backyard Spot and Base Setup

Location is the absolute foundation of a successful stock tank pool setup. Water is incredibly heavy, weighing roughly 8.34 pounds per gallon, which means an average 8-foot tank will tip the scales at over 6,000 pounds when full. Choose a flat, sunny area far away from underground utility lines, septic fields, and overhanging trees that constantly drop debris.

Never place a stock tank directly on bare dirt or unlevel grass. Over time, the massive weight will cause the tank to sink unevenly, placing immense stress on the metal seams and compromising your filtration plumbing. A level base of packed crushed stone, concrete, or a firmly compacted sand bed is essential to keep the pool stable and level for years to come.

Stock Tank – Behlen Country Galvanized Round Tank

The stock tank is the literal heart of this project, serving as the pool shell that must withstand high water pressure, UV exposure, and constant use. The Behlen Country Galvanized Round Tank is the industry standard for this application because of its heavy-duty zinc-coated galvanized steel construction. Its deep-crimped sidewalls and reinforced rolled rims provide unmatched structural integrity, preventing the bowing or warping that plagues cheaper, thinner metal tubs.

Before hauling one home, measure your backyard gates and access paths carefully, as an 8-foot rigid tank cannot be bent or disassembled for transport. The heavy galvanization resists rust exceptionally well, but scratches from rough handling during delivery should be treated immediately with cold galvanizing spray to preserve the protective barrier.

• Material: Heavy-duty 20-gauge galvanized steel
• Sizes: Available in 6-foot, 8-foot, and 10-foot diameters
• Capacity: Approximately 700 gallons (8-foot model)
• Features: Built-in drain plug, reinforced steel top rim

This tank is perfect for homeowners seeking a permanent, puncture-proof backyard pool with a classic rustic aesthetic. It is not suitable for renters who need a temporary, easily packable setup or yards with narrow, restricted entryways that prevent delivery.

Pool Pad – Gorilla Pad Pool Bottom Protector

A metal stock tank sitting directly on gravel or concrete will eventually suffer from friction wear on its underside, leading to premature rust and pinhole leaks. The Gorilla Pad Pool Bottom Protector acts as a tough, cushioned barrier that shields the metal bottom from rocks, roots, and abrasive surfaces. It also adds a subtle layer of softness underfoot, making the hard steel bottom much more comfortable to sit on.

Unlike cheap plastic tarps that trap condensation and accelerate rust, this pad uses a highly breathable, woven geofabric that allows moisture to escape. It is incredibly easy to install, but requires a sharp utility knife to trim the excess material around the circular perimeter of the tank after positioning.

• Material: Durable, puncture-resistant polyester geotextile
• Compatibility: Works on sand, soil, concrete, or gravel bases
• Sizing: Comes in standard round pool sizes (trim to fit)

This pad is an absolute necessity for anyone installing their pool on gravel, crushed stone, or rough dirt surfaces. It is less critical for smooth, poured concrete pads, though it still provides valuable thermal insulation and foot cushioning that bare concrete lacks.

Hole Saw – Milwaukee Hole Dozer Bi-Metal Hole Saw

To hook up a high-performance sand filter, two clean, perfectly sized holes must be cut directly through the steel wall of the stock tank. The Milwaukee Hole Dozer Bi-Metal Hole Saw is the ideal tool for this intimidating task, designed to slice through galvanized steel without binding or tearing the metal. Its robust bi-metal construction and hardened teeth ensure the cut is perfectly round, which is critical for achieving a watertight seal with your rubber gaskets.

For standard Intex large jet fittings, a 2-3/4 inch hole saw is the exact size required. When drilling, use a slow drill speed, apply heavy downward pressure, and use a generous amount of cutting oil to lubricate the blade and prevent the metal from overheating and warping.

• Blade Material: Cobalt bi-metal for high heat resistance
• Recommended Size: 2-3/4 inch (70mm) for standard Intex jet fittings
• Arbor Compatibility: Requires a standard 3/8-inch or 1/2-inch drill chuck

This tool is indispensable for DIYers who want a clean, professional-looking plumbed-in filtration system. It is not necessary for those attempting to run hoses over the top edge of the tank, though over-the-edge setups are notoriously difficult to prime and keep clean.

Silicone Sealant – GE Advanced Silicone 2 Sealant

Cutting holes in steel exposes raw, ungalvanized metal edges that are highly vulnerable to rust and slow, persistent leaks. GE Advanced Silicone 2 Sealant provides an impenetrable, flexible barrier around the cut edges and the rubber gaskets of your pool fittings. This 100% silicone formula cures quickly and remains flexible, accommodating the slight expansion and contraction of the steel tank as temperatures change.

Unlike acrylic caulk, this silicone is fully waterproof, shrink-proof, and highly resistant to the degrading effects of chlorine and intense UV rays. For the best results, clean the metal surfaces thoroughly with rubbing alcohol before applying a generous bead of silicone on both sides of the rubber gaskets.

• Material: 100% silicone polymer
• Cure Time: Rain-ready in 30 minutes; full cure in 24 hours
• Properties: Mold-resistant, UV-resistant, permanently flexible

This sealant is a non-negotiable purchase for anyone cutting plumbing holes into their stock tank pool. It is not suitable for underwater application, so ensure the tank is completely dry and clean during the initial assembly phase.

Jet Fitting – Intex Large Pool Inlet Jet Fitting

Jet fittings act as the transition points between the rigid steel tank walls and the flexible hoses of your filtration system. The Intex Large Pool Inlet Jet Fitting is the preferred choice because it features thick, heavy-duty rubber gaskets designed to seal tightly against curved metal surfaces. The adjustable directional nozzle allows you to angle the returning water stream, creating a gentle vortex that helps push debris toward your pool vacuum.

You will need to purchase two of these assemblies: one to serve as the suction outlet (drawing water to the pump) and one as the return inlet (pushing clean water back in). When installing, sandwich the steel wall between the rubber gaskets, apply silicone, and hand-tighten the plastic nuts before giving them an extra quarter-turn with a strap wrench.

• Hose Connection: Fits standard 1.5-inch threaded Intex hoses
• Required Hole Size: 2-3/4 inches
• Components: Includes grid strainer, directional jet, rubber gaskets, and mounting nuts

These fittings are perfect for anyone using standard Intex-branded filter pumps and hoses. They are not compatible with smaller 1.25-inch clamp-on hoses unless you use a separate step-down adapter, which can restrict water flow.

Filter Pump – Intex Krystal Clear Sand Filter Pump

A stagnant pool quickly becomes a breeding ground for algae, mosquitoes, and bacteria. The Intex Krystal Clear Sand Filter Pump provides the powerful circulation and deep filtration required to keep a stock tank pool safe and clear. While cheap cartridge filters clog constantly, sand filtration relies on dense silica sand to trap microscopic particles, requiring only a quick valve turn to backwash the dirt away.

For an 8-foot stock tank pool (around 700 gallons), the 1,200 GPH (gallons per hour) model is the perfect match. This flow rate easily circulates the entire pool volume multiple times per hour, ensuring chemical distribution is uniform and the water remains pristine.

• Flow Rate: 1,200 gallons per hour
• Filtration Media: Pool filter sand or glass media (not included)
• Control Valve: 6-function valve (Filter, Backwash, Rinse, Recirculate, Drain, Close)

This pump is ideal for pool owners who prioritize low-maintenance water care and want to avoid the recurring cost of paper filters. It is overkill for small 4-foot tanks, where a smaller cartridge filter pump may suffice.

Floating Dispenser – U.S. Pool Supply Dispenser

Chlorine is the most effective way to sanitize pool water, but letting a chlorine tablet sit directly on a galvanized steel bottom will corrode the metal in days. The U.S. Pool Supply Floating Dispenser keeps the sanitizing tablets safely suspended at the surface, dissolving them slowly and evenly throughout the water column. This floating mechanism prevents high-concentration chemical hotspots that strip the zinc coating off your tank.

This dispenser features a twist-lock cap to keep tablets secure from curious children and pets, along with an adjustable control ring to regulate chemical release. Because stock tanks hold a relatively low volume of water, use 1-inch chlorine tablets and keep the bottom vents mostly closed to prevent over-chlorination.

• Capacity: Holds up to 3-inch chlorine tablets (1-inch recommended for stock tanks)
• Material: Heavy-duty, UV-resistant plastic
• Adjustability: Multi-port adjustable vent ring

This simple tool is mandatory for any stock tank pool owner utilizing chlorine sanitation. It is not necessary if you use alternative sanitation systems like active copper ionizers, though chlorine remains the most reliable option for hot summer days.

Pool Cover – Intex Easy Set Round Pool Cover

An uncovered pool is an open invitation for leaves, bugs, and pollen, which quickly decay and overload your filtration system. The Intex Easy Set Round Pool Cover acts as a physical shield, keeping organic debris out of the water when the pool is not in use. It also helps retain daytime heat overnight, saving you from a chilly morning shock when you jump in.

Made from durable vinyl, this cover features built-in drain holes that prevent rainwater from pooling on top and weighing the cover down. The integrated drawstring allows you to secure the overhang tightly around the rigid steel rim of the stock tank, preventing wind from blowing it away.

• Material: Durable 7-gauge (0.18mm) vinyl
• Sizing: 8-foot diameter (perfect match for 8-foot stock tanks)
• Features: Drain holes to prevent water accumulation, tight-cinch drawstring

This cover is a must-have for any backyard pool surrounded by trees, foliage, or high winds. It is not designed to support weight, so it should not be relied upon as a safety cover for pets or small children.

Pool Vacuum – Pool Blaster Catfish Li Vacuum

Even with a great filter pump, heavy debris like sand, dirt, and dead bugs will inevitably settle on the flat bottom of your stock tank. The Pool Blaster Catfish Li Vacuum is a cordless, battery-powered underwater vacuum that sucks up this sediment without needing to hook up messy hoses to your main pump. Its independent operation means you can clean the pool in under two minutes without interrupting the filter’s cycle.

Powered by a rechargeable lithium-ion battery, this vacuum offers consistent suction across its 45-minute runtime—more than enough for a week’s worth of quick spot cleans. The reusable filter bag traps everything from large leaves to fine silt, keeping the galvanized bottom looking pristine and feeling smooth.

• Power Source: Rechargeable lithium-ion battery (up to 45-minute runtime)
• Debris Capacity: Large capacity, reusable filter bag
• Operation: Handheld or attaches to any standard telescopic pool pole

This vacuum is perfect for stock tank owners who want a fast, hassle-free way to clear bottom debris without messing with vacuum hoses and pump priming. It is not suitable for vacuuming large quantities of thick, heavy mud, which should be scooped out with a hand net first.

Essential Chemistry and Safety Rules for Tank Pools

Maintaining proper water chemistry in a stock tank pool is slightly different than in a traditional vinyl or concrete pool. Because the tank is made of galvanized steel, keeping the pH strictly balanced between 7.2 and 7.6 is critical; if the water becomes too acidic, it will eat away the protective zinc coating and cause rapid rusting. Regularly test the water using pool test strips and adjust the alkalinity and pH before adding chlorine.

Keep free chlorine levels strictly between 1 and 3 parts per million (ppm). Over-chlorinating not only irritates skin but also accelerates the corrosion of the steel tank walls. Additionally, since stock tanks are relatively shallow (usually 2 feet deep), never allow diving or jumping. Always supervise children around the pool, and check local zoning laws regarding safety fences or locking covers for backyard water features.

Winterizing Your Stock Tank Pool for the Offseason

Leaving water in a stock tank pool during freezing winter months is a recipe for disaster. When water freezes, it expands with immense force, which can warp the steel tank walls, split the seams, and completely destroy your plastic jet fittings and sand filter pump. As the summer season wraps up, disconnect the pump, hoses, and jet fittings, storing them in a dry, freeze-protected space like a garage or basement.

Drain the tank completely using the bottom drain plug, and tip it on its side or flip it upside down to prevent rainwater from accumulating and freezing inside. If flipping the tank is not feasible due to landscaping, cover it with a heavy-duty, waterproof winter tarp secured tightly with ratcheting tie-downs. Ensure the interior is dry before covering to prevent mold and mildew from taking hold during the damp winter months.

Conclusion

With the right equipment and a solid maintenance routine, your backyard stock tank pool will transition from a simple DIY project into a reliable, long-lasting summer oasis. Taking the time to properly level the base, cut clean plumbing lines, and manage your water chemistry ensures your investment pays off in endless refreshing afternoons. Grab your tools, set up your gear, and get ready to enjoy a cool, stress-free soak in your custom-built retreat.