8 Supplies for Setting Up Automatic Pig Waterers

Keeping pigs hydrated is one of the most relentless daily chores on a small homestead, especially when mud and mischief lead to tipped-over water buckets. Transitioning to an automatic watering system saves hours of labor while ensuring your livestock always have access to clean, cool water. With the right combination of durable components, you can build a reliable, freeze-resistant setup that stands up to even the most curious market hogs.

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

Why Automatic Waterers Are Essential for Pigs

Pigs have a notorious reputation for turning open water troughs into personal mud baths within minutes of filling. This behavior does more than create a wet mess; it spoils their drinking supply and invites harmful bacteria to thrive in the warm muck. An automatic system keeps the water sealed and sanitary until the exact moment a pig decides to drink.

Hydration directly impacts a pig’s feed conversion rate and overall growth. A pig that lacks consistent access to fresh water will quickly stop eating, stalling your production schedule and stressing the animal’s kidneys. Automatic waterers eliminate the human error of empty buckets, providing a constant, on-demand supply that matches their biological needs.

For the part-time farmer, time is the most valuable commodity on the homestead. Hauling heavy buckets twice a day or constantly scrubbing out algae-filled stock tanks eats away at your limited daylight hours. Installing a reliable automatic system shifts your role from a water-toting laborer to an efficient manager of a self-sustaining pasture.

Planning Your Automatic Pig Waterer System Layout

Before buying a single fitting, you must map out where your water source originates and how it will reach the pigs. Gravity-fed systems utilizing elevated rain barrels or IBC totes work beautifully for remote pastures, but they require careful elevation calculations to generate sufficient flow. Municipal or well-pressurized lines offer endless water but require pressure reduction to prevent blasting the pigs in the face.

Physical placement within the pen is equally critical to prevent mud holes and structural damage. Position the watering station over a concrete pad or a well-drained gravel base to catch the inevitable drips and spills. Keep the waterer away from the feeding and sleeping areas to maintain clean, dry bedding and prevent territorial behavior during meal times.

Consider the growth rate of your herd when determining the height of your drinkers. A market hog grows rapidly over a six-month period, meaning a fixed-height nipple that was perfect for a weaner pig will be frustratingly low for a 250-pound finisher. Planning an adjustable mounting system or installing multiple nipples at varying heights ensures comfortable access throughout the entire production cycle.

Nipple Drinker – Trojan Model 75 Stainless Steel

The nipple drinker is the interface between your water system and the pig’s mouth. It must allow water to flow freely when triggered but seal instantly and completely when released. Without a high-quality nipple, your system will either starve your pigs of water or slowly drain your storage tanks into the bedding.

The Trojan Model 75 Stainless Steel nipple is built specifically to withstand the brutal biting force of growing hogs. Its solid stainless steel construction resists rust and mineral buildup, while the internal spring mechanism provides a positive, drip-free shutoff. The 1/2-inch connection thread fits standard plumbing layouts, making it highly adaptable for DIY setups.

• Thread size: 1/2-inch NPT pipe thread for universal fitting
• Material: Heavy-duty, non-corrosive stainless steel
• Operation: Push-style trigger that pigs learn to use within minutes
• Adjustability: Features an adjustable orifice to control water flow rates based on line pressure

Keep in mind that while pigs learn to use this quickly, you may need to manually depress the trigger a few times to show new weaners where the water comes from.

This drinker is ideal for homesteaders raising small batches of market hogs or keeping breeding sows. It is not suitable for tiny, day-old piglets who lack the physical strength to depress the heavy-duty spring mechanism.

Pressure Regulator – Senninger PMR-MF Regulator

Standard household water pressure usually runs between 40 and 60 PSI, which is far too high for pig nipples and float valves. Excess pressure causes violent spraying, damages internal seals, and makes it physically difficult for pigs to push the drinker triggers. A pressure regulator steps this force down to a safe, manageable level.

The Senninger PMR-MF Regulator is designed to maintain a constant preset outlet pressure regardless of fluctuations in the main supply line. Its rugged thermoplastic housing resists UV damage and farm chemicals, making it perfect for outdoor installations. It operates reliably at low flow rates, which is crucial since pigs drink in short, intermittent bursts rather than continuous streams.

• Preset Pressure: 15 PSI, ideal for preventing nipple spray and valve wear
• Inlet/Outlet Size: 3/4-inch female NPT inlet and male NPT outlet
• Flow Range: 2 to 20 gallons per minute

You must install this regulator with the flow arrow pointing in the correct direction, or it will completely block water delivery. It is also susceptible to damage from freezing, so it must be drained or brought indoors before the first hard frost.

This regulator is perfect for setups connected to high-pressure well pumps or municipal spigots. It is completely unnecessary for low-pressure, gravity-fed barrel systems where the natural pressure is already minimal.

Bulkhead Fitting – Banjo TF100 Tank Connector

If you are feeding your system from a plastic barrel, stock tank, or IBC tote, you need a way to pipe water through the tank wall without creating leaks. A bulkhead fitting clamps tightly onto both sides of the plastic container, creating a watertight seal around the exit hole. Trying to seal a pipe with silicone or glue alone will inevitably fail under the stress of shifting water weight.

The Banjo TF100 Tank Connector features heavy-duty polypropylene construction and a thick EPDM gasket that compresses perfectly against curved barrel walls. The reverse-thread design ensures that as you tighten your plumbing fittings into the bulkhead, the bulkhead itself tightens against the tank rather than spinning loose. It provides a rock-solid, professional-grade connection that won’t crack under outdoor exposure.

• Size: 1-inch female NPT threads for high-volume flow
• Material: Glass-filled polypropylene for extreme chemical and impact resistance
• Gasket: Premium EPDM rubber for a long-lasting, leak-proof seal

Installing this requires drilling a precise hole in your tank using a hole saw. Be sure to clean away any plastic burrs from the drilled edge before inserting the fitting to ensure the gasket seats perfectly flat.

This is a must-have for any homesteader utilizing gravity-fed storage tanks or rain barrels. It is not needed if your watering system connects directly to an existing pressurized outdoor hose bib.

Sediment Filter – Rusco Spin-Down Water Filter

Well water and pond-fed systems often carry fine sand, silt, and organic debris that can wreak havoc on automatic waterers. Even tiny particles of grit can lodge inside a nipple drinker or float valve, keeping it slightly open and causing constant, expensive leaks. A sediment filter traps these particles before they ever reach your pasture plumbing.

The Rusco Spin-Down Water Filter uses a unique centrifugal action to spin heavy sediment to the bottom of its clear cover, keeping the filter screen clean longer. When the bottom chamber fills with debris, you simply open the flush valve at the base to clear it out, eliminating the need to constantly buy replacement cartridges. The clear cover allows you to monitor sediment buildup at a glance without taking the system apart.

• Screen Mesh: 100 mesh (152 microns) is ideal for trapping sand and large sediment without restricting flow
• Body Material: High-impact polymer with a PVC head
• Maintenance: Simple manual flush valve for tool-free cleaning

Ensure the filter is installed before your pressure regulator and drinkers to protect the entire system. In freezing climates, the water-filled clear body will crack if allowed to freeze, so it must be bypassed or drained in winter.

This filter is essential for farms drawing from shallow wells, spring boxes, or rainwater collection systems. It is generally optional if your water source is highly treated, sediment-free municipal tap water.

Thread Sealant Tape – Dixon TFE12 Teflon Tape

Metal-on-metal and plastic-on-plastic threaded plumbing connections have microscopic gaps that water will eventually find, leading to slow, annoying drips. Thread sealant tape fills these tiny voids and acts as a lubricant, allowing you to tighten the fittings fully without galling the threads. It is the cheap insurance policy that keeps your barnyard dry and your water pressure consistent.

Dixon TFE12 Teflon Tape is a high-density, professional-grade PTFE tape that resists tearing and shredding during installation. Unlike cheap, thin tapes that bunch up and fail to seal, this heavy-duty tape wraps smoothly around threads and conforms to the joint shape. It remains pliable over time, allowing for easy disassembly when you need to replace or clean components years down the road.

• Width: 1/2-inch width, perfect for standard farm plumbing fittings
• Thickness: High-density formulation for superior sealing power with fewer wraps
• Compatibility: Safe for use on plastic, brass, copper, and stainless steel threads

Always wrap the tape in the clockwise direction of the threads; wrapping it counterclockwise will cause the tape to unspool and bunch up as you screw the fittings together.

This is an absolute necessity for anyone assembling threaded pipe fittings, regardless of the system size. It is not designed for compression fittings or hose-gasket connections, which rely on rubber washers rather than thread contact to seal.

Utility Hose – Apex Commercial Duty Garden Hose

You need a flexible, durable conduit to transport water from your main spigot to the pig pasture. Rigid PVC pipe is excellent but prone to cracking if stepped on by livestock or shifted by frost, whereas a high-quality utility hose offers the flexibility to navigate uneven terrain. It allows you to easily move your watering station to clean ground or adapt to changing pasture layouts.

The Apex Commercial Duty Garden Hose is built with a tough, double-reinforced radial braid that resists kinks and high water pressures. Its heavy-duty brass couplings are crush-resistant, meaning they can survive the occasional stray tractor tire or heavy boot. The outer jacket is treated to resist UV degradation, preventing the hose from becoming brittle and bursting under the hot summer sun.

• Diameter: 5/8-inch inside diameter for excellent flow volume
• Couplings: Heavy-duty, lead-free brass with spring collars to prevent kinking at the spigot
• Temperature Range: Remains flexible in cold weather down to freezing temperatures

Keep this hose on the outside of your pig fencing; pigs are incredibly destructive and will happily chew through even the toughest rubber hoses if they can reach them.

This hose is perfect for homesteaders who need to run water lines across pastures to mobile pens. It is not suitable for permanent, buried mainlines where rigid, freeze-proof HDPE pipe is the safer long-term choice.

Float Valve – Kerick Valve MA252 PVC Valve

If you prefer using a drinking trough or a large open pan rather than nipple drinkers, you need a way to keep the vessel filled automatically. A float valve sits inside the trough, monitoring the water level and opening the supply line when the level drops. It shuts off automatically when the tank is full, preventing overflows and keeping your pasture dry.

The Kerick Valve MA252 PVC Valve features a durable, corrosion-resistant PVC body and a stainless steel lever arm that won’t rust in wet environments. The adjustable arm allows you to fine-tune the water level in your trough with a simple turn of a wing nut. Its compact design takes up minimal space, making it easy to protect from curious pig snouts.

• Inlet Size: 1/2-inch male NPT thread
• Flow Rate: Up to 1.5 gallons per minute at 60 PSI
• Mounting: Can be tank-mounted or suspended from a bracket

Pigs love to play with floating objects, so you must construct a heavy-duty metal or wood guard over this valve to prevent them from ripping the float ball off the arm.

This valve is ideal for farmers using large stock tanks to water multiple sows or mixed-age herds. It is not suitable for setups that rely solely on clean, sealed nipple drinkers.

Mounting Bracket – QC Supply Stainless Bracket

Pigs are incredibly strong and use their snouts to root, lift, and push anything in their environment. If your nipple drinkers are attached directly to loose pipes, the pigs will quickly bend, snap, or tear them from the wall. A heavy-duty mounting bracket anchors the plumbing securely to a fence post, wall, or frame, transferring the physical stress away from the pipe joints.

The QC Supply Stainless Bracket is stamped from thick, marine-grade stainless steel that resists both rust and the corrosive effects of pig manure and urine. It features pre-drilled mounting holes for easy attachment to wood or metal posts, and holds the nipple drinker at a comfortable, downward-facing 45-degree angle. This angle promotes natural drinking posture and reduces water waste from dripping.

• Material: Corrosion-resistant 304 stainless steel
• Angle: 45-degree downward tilt for optimal water flow and ergonomics
• Hardware: Requires heavy-duty lag screws or bolts (not included) for secure mounting

Mount this bracket to a solid, deeply set fence post or a structural wall; attaching it to flimsy wire fencing will result in the pigs shaking the entire fence line loose.

This bracket is a critical component for any nipple-based watering system installed in a permanent or semi-permanent pen. It is unnecessary if you are using a float-valve-controlled open stock tank.

Tips for Installing Your Automatic Pig Waterer

Height is the most crucial variable when mounting your nipple drinkers. As a general rule of thumb, mount the nipple approximately two to three inches above the shoulder height of your smallest pig. This forces them to reach slightly up to drink, which naturally opens their mouths and minimizes water spilling out of the sides.

Secure your supply lines out of reach of curious snouts. Pigs are natural explorers and will chew on exposed PVC pipes, hoses, or wires out of sheer boredom. Run your plumbing down the outside of the pen wall, bringing only the stainless steel bracket and nipple through the barrier to the inside.

Test the water flow rate before turning your herd loose on the new system. A flow rate that is too fast will scare young pigs and waste water, while a flow rate that is too slow will frustrate them, leading to destructive behavior as they try to dismantle the drinker. Adjust your pressure regulator until you achieve a steady, gentle stream when the nipple is depressed.

How to Winterize Your Pig Watering System

Freezing temperatures are the ultimate enemy of automatic watering systems. Water expands as it freezes, which will instantly crack plastic regulators, split brass fittings, and ruin stainless steel nipples. As winter approaches, you must have a clear plan to protect your infrastructure from ice damage.

For year-round operations in cold climates, wrap your supply lines in electric heat tape and cover them with foam pipe insulation. Alternatively, you can use a submersible de-icer in your main storage tank and run a low-voltage heating element directly inside the nipple pipe. If you are using a gravity-fed barrel, keeping the water moving or heavily insulating the container can buy you time during brief cold snaps.

If you do not raise pigs through the winter, the safest option is to completely drain the system. Disconnect the hoses, open all valves, and blow compressed air through the lines to ensure no water remains trapped inside the pressure regulator or nipples. Store the delicate components, like the regulator and sediment filter, in a heated barn or basement until spring.

Setting up a reliable automatic pig waterer takes a bit of upfront planning and the right set of durable components, but the payoff in saved labor and healthier livestock is immense. By investing in quality fittings and protecting them from both freezing temperatures and curious pig snouts, you will create a system that runs smoothly season after season. With your watering chores automated, you can focus your time on the many other rewarding tasks around your homestead.