8 Supplies for Creating a Backyard Pig Wallow

When summer temperatures soar, backyard pigs face a serious threat from heat stress because they cannot sweat to cool themselves down. Creating a dedicated, durable mud wallow is the single most effective way to keep your herd healthy, comfortable, and safe during the hottest months of the year. This guide breaks down the essential supplies and steps needed to build a reliable, easy-to-maintain wallow that will withstand heavy use season after season.

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Why Pigs Need a Wallow for Summer Cooling

Pigs possess very few sweat glands, making them highly susceptible to heat stroke and sun damage when temperatures rise above 80°F. A mud wallow serves a dual purpose: the evaporating water cools their skin, while the thick layer of mud acts as a natural sunscreen and a barrier against biting insects. Without a proper wallow, pigs will attempt to create their own by tipping over waterers, leading to wasted water and a messy, unmanageable pen.

A structured, intentional wallow prevents soil erosion and keeps the rest of the pasture dry and usable. By controlling where the mud is created, hobby farmers can manage hygiene, minimize parasite loads, and ensure the pigs have a reliable cooling station. It transforms a chaotic, muddy pen into an organized, sustainable backyard system.

Digging Shovel – Bully Tools Round Point Shovel

Digging a wallow requires cutting through tough sod, roots, and compacted clay. A flimsy hardware-store shovel will bend or snap under this pressure, stalling the project before the pit is even formed. The Bully Tools Round Point Shovel provides the leverage and strength needed to excavate a clean, sloped pit that holds its shape.

This tool features a heavy-duty 14-gauge steel blade and a triple-wall fiberglass handle reinforced with a wood core. The closed-back design prevents mud from packing into the spine of the shovel, making it easier to clean as you dig. Its extra-wide foot step allows you to transfer maximum body weight to the blade without slipping.

When using this shovel, remember to dig the sides of the wallow at a gentle slope rather than a sheer drop. Pigs need to walk in and out easily without collapsing the edges of the pit.

• Blade Material: 14-gauge tempered steel
• Handle: Co-polymer coated fiberglass with wood core
• Best for: Digging in rocky, clay-heavy, or root-filled pasture soil
• Not ideal for: Farmers looking for an ultra-lightweight tool, as this heavy-duty build carries some weight.

Pond Liner – Firestone PondGard Rubber Liner

Water drains quickly through bare soil, leaving you with a dry pit and a massive water bill. A high-quality liner retains the water, keeping the wallow wet without constant refilling. The Firestone PondGard Rubber Liner is the gold standard for creating a stable, waterproof barrier that can withstand the weight and hooves of active swine.

Made of 45-mil EPDM rubber, this liner is exceptionally flexible, allowing it to conform to the contours of your dug pit. It is highly resistant to UV rays, ozone, and cracking, which is crucial since parts of the liner will inevitably be exposed to direct sunlight. Its fish-friendly formulation ensures that no toxic chemicals leach into the mud where your pigs bathe.

Pigs love to root and dig, so a bare liner will quickly get punctured by sharp hooves. You must cover the liner with a protective layer of smooth, rock-free soil or sand before letting the pigs near it.

• Thickness: 45 mil (1.14 mm)
• Material: Ethylene Propylene Diene Monomer (EPDM)
• Best for: Long-term installations where water retention is a primary challenge
• Not ideal for: Temporary setups or farmers unwilling to cover the liner with a protective dirt buffer.

Garden Hose – Flexzilla Heavy Duty Hybrid Hose

A wallow requires a constant, reliable water source for filling and rinsing. Cheap hoses kink, crack under UV exposure, and restrict water flow, turning a quick chore into a frustrating battle. The Flexzilla Heavy Duty Hybrid Hose ensures a steady stream of water reaches the pasture without the headache of tangles.

This hose is constructed from a premium hybrid polymer that allows it to lay completely flat and remain flexible even in extreme temperatures. It features heavy-duty, crush-resistant anodized aluminum fittings that won’t leak when dragged across rough pasture ground. The bright green color also makes it highly visible, reducing the risk of accidentally running over it with a tractor or mower.

While highly durable, no hose can survive being chewed on by a curious pig. Always route the hose outside the pasture fence line and only drop the nozzle into the wallow area where the pigs cannot reach the main line.

• Material: Premium hybrid polymer
• Working Pressure: 150 PSI
• Best for: Daily farm chores, long runs across pastures, and hot-weather use
• Not ideal for: High-pressure power washing systems requiring specialized steel-braided lines.

Float Valve – Kerick Valve PVC Float Valve

Manually filling a wallow every day is a time sink that busy hobby farmers cannot afford. A float valve automates the process, keeping the water at a consistent level while preventing wasteful overflows. The Kerick Valve PVC Float Valve is a simple, mechanical solution that keeps the wallow topped off without constant supervision.

Built with a heavy-duty PVC body and stainless steel hardware, this valve resists corrosion and handles the mineral-heavy water common on rural properties. The adjustable arm allows you to fine-tune the water depth, ensuring the wallow stays muddy but never turns into a deep, dangerous pool. It mounts securely to the side of a supply pipe or a protective housing.

Because pigs are incredibly destructive, you must install this valve inside a protective shroud or behind a sturdy barrier. If left exposed, pigs will use it as a chew toy, leading to a flooded pasture.

• Inlet Size: 1/2-inch NPT
• Material: Corrosion-resistant PVC with stainless steel hardware
• Best for: Automating water levels in protected wallow setups or stock tanks
• Not ideal for: Unprotected installations where animals have direct physical access to the valve.

Hog Panel – OK Brand Max 50 Heavy Duty Panel

Pigs are natural bulldozers that will quickly expand their wallow across your entire pasture if left unchecked. You need a physical barrier to define the boundaries of the wallow area and protect your plumbing. The OK Brand Max 50 Heavy Duty Panel provides the rigid containment necessary to keep pigs exactly where they belong.

These panels feature a 4-gauge wire construction with a galvanized finish that resists rust even in wet, muddy environments. The 8-inch vertical spacing combined with graduated horizontal spacing prevents smaller piglets from slipping through while remaining strong enough to stop a mature sow. They do not sag or buckle under pressure like standard woven wire fencing.

When installing these panels around a wallow, ensure the bottom wire is secured close to the ground. Pigs will attempt to root underneath the panel, so securing it with heavy-duty ground staples or t-posts is critical.

• Height: 34 inches
• Length: 16 feet
• Best for: Perimeter containment around wallows, feeding stations, and sorting pens
• Not ideal for: Containing very small poultry or predators, which can slip through the grid.

Fence Post – Sullivans Mining Steel T-Post

A fence panel is only as strong as the posts holding it up. Pigs will lean, rub, and push against panels to scratch themselves, easily toppling weak wooden stakes. The Sullivans Mining Steel T-Post provides the rigid, unyielding anchor needed to keep your containment panels standing straight.

Manufactured from high-strength rail steel, these t-posts feature a heavy stabilizer plate that prevents the post from twisting or shifting in wet, saturated soil. The baked-on enamel finish protects the steel from rust, which is a constant threat near a wet pig wallow. The studs along the post make it easy to secure your panels at the perfect height using standard wire clips.

For a secure wallow perimeter, space these posts no more than four to five feet apart. In soft, muddy ground, you may need to drive them deeper than usual to reach solid subsoil.

• Material: Rail steel with rust-resistant enamel
• Weight: 1.33 lbs per foot
• Best for: Saturated soils, heavy livestock pressure, and quick fence installation
• Not ideal for: Rocky terrain where driving steel posts requires specialized heavy machinery.

Shade Sail – Coolaroo Premium Rectangle Sail

Mud cools a pig’s skin, but direct sunlight will still cause heat exhaustion and severe sunburn on their sensitive ears and backs. Providing overhead shade directly above the wallow dramatically lowers the water temperature and protects the pigs. The Coolaroo Premium Rectangle Sail blocks the sun’s harsh rays while allowing cool breezes to pass through.

This sail is made from high-density polyethylene (HDPE) knitted fabric that blocks up to 90% of harmful UV rays. The breathable material allows hot air to escape upward, preventing a humid greenhouse effect directly over the wallow. It is resistant to mold, mildew, and tearing, ensuring it survives windy summer storms.

Secure the sail high enough so that pigs cannot reach the corners or pull down the tensioning ropes. It should be angled slightly to allow rainwater to run off rather than pooling in the center.

• Material: 100% HDPE knitted fabric
• UV Block: Up to 90%
• Best for: Creating overhead shade over wallows, paddocks, and outdoor feeding areas
• Not ideal for: Areas with heavy winter snow loads unless taken down seasonally.

Scrub Brush – Carlisle Sparta Palmyra Brush

A wallow can quickly become a breeding ground for bacteria, algae, and biting insects if the surfaces are not cleaned regularly. A dedicated, stiff-bristled brush is essential for scrubbing down the edges, pipes, and protective barriers. The Carlisle Sparta Palmyra Brush cuts through dried mud and algae buildup with minimal effort.

Featuring natural palmyra bristles, this brush offers excellent scrubbing action and holds up well to water and cleaning solutions. The structural foam block will not crack, splinter, or absorb moisture, preventing the brush itself from becoming a harbor for bacteria. Its tapered design allows you to reach into tight corners and around plumbing fixtures easily.

Pair this brush with a sturdy wooden handle to save your back while scrubbing the bottom of the wallow. Rinse the bristles thoroughly after each use and hang it to dry in a well-ventilated area to prolong its lifespan.

• Bristle Material: Natural palmyra fiber
• Block Material: Structural foam
• Best for: Heavy-duty scrubbing of concrete pads, stock tanks, and wallow liners
• Not ideal for: Delicate surfaces that are easily scratched by stiff, coarse fibers.

Step-by-Step Guide to Digging Your Wallow

Begin by selecting a flat, natural low spot in your pasture that receives partial shade but is easily accessible with a garden hose. Mark out an area roughly six feet wide by eight feet long, which provides ample room for two to three medium-sized pigs. Use your round point shovel to excavate the soil to a depth of about 12 to 18 inches, sloping the sides gently toward the center to create an easy ramp.

Clear the excavated pit of all sharp rocks, roots, and debris that could puncture your liner. Lay down a two-inch layer of damp sand or soft soil at the bottom of the pit to act as a protective cushion. Unroll your rubber pond liner over the pit, smoothing out major wrinkles while leaving enough slack so the liner doesn’t stretch when filled with water.

Secure the edges of the liner outside the pit by burying them in a shallow trench or pinning them down with heavy t-posts. Cover the liner inside the pit with six inches of clean, rock-free clay or soil; this layer is crucial, as it protects the rubber from sharp hooves and provides the raw material for the pigs to make mud. Slowly fill the pit with water, allowing the soil to saturate and form a thick, creamy mud.

How to Keep the Wallow Clean and Odor-Free

A neglected wallow will quickly turn into a foul-smelling swamp that attracts flies and poses health risks to your herd. To prevent this, establish a weekly maintenance routine that includes skimming out organic debris like leaves, straw, and manure. Pigs will occasionally defecate in the water, so removing solid waste immediately is critical to keeping bacteria levels low.

Utilize beneficial microbes or agricultural lime to neutralize odors naturally without harming your animals. Sprinkling a thin layer of hydrated lime around the perimeter of the wallow helps control pathogens and neutralizes acidic, odor-causing compounds. Additionally, draining and rinsing the wallow every two to three weeks prevents the buildup of stagnant, anaerobic bacteria.

When refilling the wallow, ensure you are using clean, potable water rather than stagnant runoff. Keeping a steady trickle of fresh water running through a float valve helps dilute impurities and keeps the mud at a cooler, more hygienic temperature.

Managing Mud and Drainage on Your Hobby Farm

While mud is essential inside the wallow, uncontrolled mud around the perimeter can ruin pasture quality and cause hoof rot. Create a transition zone around the wallow using heavy-duty gravel, wood chips, or geotextile fabric to prevent the surrounding soil from turning into a bog. This high-traffic pad gives pigs a stable place to stand when entering or exiting the wallow.

Route the overflow from your wallow away from critical farm infrastructure, barns, and clean water sources. Dig a shallow swale or French drain lined with gravel to direct excess water toward a pasture area with thirsty, deep-rooted plants. This prevents standing water from pooling near your fence lines, which can rot wooden posts and weaken steel t-post anchors.

During the wet winter months, decommission the wallow completely to allow the soil to rest and dry. Drain the water, remove the shade sail to prevent wind damage, and cover the pit to stop it from collecting rainwater. This seasonal management ensures your wallow remains a functional asset in the summer rather than a year-round muddy headache.

Building a dedicated backyard pig wallow is a straightforward project that yields massive benefits for your livestock’s health and your peace of mind. By investing in durable, farm-grade materials like heavy-duty liners, rigid panels, and reliable float valves, you create a cooling station that lasts for years. With proper site preparation and consistent maintenance, your pigs will stay cool, comfortable, and thriving all summer long.