Types of Hog Waterers: How to Choose the Right One
Choosing a hog waterer involves more than finding a container that holds enough water. Pigs need dependable access to clean drinking water, and the right equipment must accommodate their size, drinking behavior, and housing conditions. Barn World offers livestock waterers for a range of farm and ranch applications, including equipment designed specifically for hogs.
For swine operations, the main decisions are whether to use a dedicated hog watering tank, a stock tank with drinking attachments, an open trough, or an automatic watering arrangement. Comparing available hog waterers can help you narrow options based on herd size, available plumbing, maintenance needs, and seasonal conditions.

Comparing the Main Types of Hog Waterers
Different watering systems address different management needs. Some store a reserve of water, while others depend on a continuous supply line. Automatic refilling can be incorporated into certain tanks and drinking stations rather than being an entirely separate type of waterer.
| Waterer Type | Common Application | Important Considerations |
|---|---|---|
| Dedicated hog waterer tank | Pig and hog pens needing accessible drinking stations | Capacity, drinking height, cleaning access, and refill options |
| Stock tank with hog drinker | Operations using compatible poly water tanks | Tank material, wall dimensions, installation, and animal access |
| Open trough | Group watering with direct access to the water surface | Contamination, spillage, cleaning, and refill frequency |
| Nipple drinker | Pen systems using individual drinking points | Pressure, flow rate, mounting height, and animal training |
| Automatic refill system | Compatible tanks connected to a continuous water supply | Valve compatibility, supply reliability, and maintenance |
Dedicated Poly Hog Waterers
A purpose-built hog waterer offers an alternative to an exposed stock tank. These units can combine water storage with protected drinking openings positioned for pigs to reach without climbing over a tall tank wall.
Barn World's 80-gallon hog waterer is an example. Made from polyethylene, it has two separate drinking areas, an internal float mechanism to regulate water levels at the drinking stations, and drain plugs for cleaning.
The drinking areas have a 6-inch lip height, designed to accommodate both smaller pigs and larger hogs. Its polyethylene construction will not rust, and the waterer can be filled manually through its removable lid or connected to an optional automatic supply valve.

Advantages of a Dedicated Hog Tank
- Drinking openings are positioned for swine rather than requiring animals to reach over a tall tank rim.
- Stored water provides a reserve between refills.
- Drain plugs allow water and accumulated debris to be emptied during cleaning.
- Internal water-level controls help maintain the drinking areas.
- Compatible automatic-refill and heating options may reduce seasonal maintenance.
Even with an 80-gallon reserve, the number of animals a waterer can support depends on consumption, refill rate, and simultaneous access. Tank capacity alone does not establish how many hogs can use it safely.
Poly Stock Tanks With Sidewall Hog Drinkers
For an operation that already uses water tanks, a sidewall hog drinker may provide a practical alternative to purchasing a separate dedicated unit.
Barn World carries round-end poly stock tanks that can be used for livestock watering. Their polyethylene construction resists rust, and the drain plugs simplify cleaning.
A compatible tank can be equipped with the Sioux Steel Hog Drinker, which installs through the side of the tank to provide a lower drinking opening.

This attachment is designed for suitable polyethylene tanks, not metal tanks. The manufacturer specifies a cutout approximately 12-1/4 inches wide by 14-1/4 inches tall. Verify the tank's wall dimensions, installation clearance, and compatibility before cutting an opening.
When Does a Tank-Mounted Drinker Make Sense?
This arrangement can be useful when a suitable poly tank is already available or when the operator wants to select tank capacity separately from the drinking attachment.
It is less suitable when the existing tank has incompatible walls, limited clearance, or a location that would make the drinking opening difficult for pigs to reach. For those situations, a complete dedicated hog waterer may be a more straightforward choice.
Automatic Hog Waterers and Refill Valves
Automatic watering generally means water is replenished as animals drink. The system may use a float-operated valve in a tank or a drinking valve that opens when an animal activates it.
One important distinction is that an internal float controlling a drinking compartment does not necessarily replenish the tank's stored water. A separate connection may be needed to keep the main reservoir filled.
For compatible enclosed waterers, Barn World offers an automatic water valve designed to connect to a standard garden hose. Its float-controlled mechanism opens as the water level falls and closes when the selected level is reached.

Before installing automatic refilling, confirm that the supply pressure and flow are suitable for the specific valve. The system also needs protection from leaks, clogged components, and interrupted water service.
For additional details, the related article on automatic hog waterers explains how these arrangements operate.
Gravity-Fed Systems Versus Pressurized Water Lines
Gravity-fed watering uses water stored above the drinking point to create flow through elevation difference. This can be useful where an elevated storage tank is available, and conventional pressure is limited.
However, gravity-fed does not automatically mean that every float valve or nipple drinker will operate properly. Some components require a minimum water pressure or flow rate that a particular gravity-fed installation cannot provide.
Pressurized supply lines can support automatic refilling when the connected equipment is rated for the available pressure. With either approach, the system must deliver water quickly enough during peak drinking periods.
The practical choice depends on the source of water, available elevation or pressure, distance to the pens, and the operating requirements of the selected waterer.
Nipple Drinkers Versus Open Troughs
Nipple drinkers and troughs represent two different methods of delivering water to pigs.
Nipple Drinkers
Nipple drinkers release water when pigs operate a valve with their mouths. Properly adjusted systems can reduce exposed standing water, but their performance depends heavily on correct placement and flow.
Units mounted too high, positioned poorly, or supplied with inadequate pressure can discourage drinking. Pigs also need to recognize how to activate the valve, particularly when switching from an open-water system.
Open Troughs
Open troughs provide a visible drinking surface that pigs can access directly. Their main advantage is straightforward access, especially for group watering.
The tradeoff is that feed, bedding, manure, and other debris can enter the trough. Regular cleaning, appropriate placement, and reliable refilling are essential.
Neither method is automatically superior for every operation. The best choice depends on the age and size of the pigs, their familiarity with the equipment, labor requirements, and the conditions of the pen.
How to Choose the Right Hog Waterer Capacity
A waterer's capacity should be evaluated alongside the amount of water available at the drinking point and how rapidly it can be replenished.
Before purchasing, consider these questions:
- How many pigs will use it? Count animals sharing each watering location rather than considering total herd size alone.
- How large are the animals? Piglets, growing pigs, and mature breeding hogs may require different drinking heights and access arrangements.
- Is the tank filled manually or automatically? Manual filling requires a sufficient reserve and a dependable inspection schedule.
- How many pigs can drink simultaneously? Multiple drinking points may be necessary to reduce crowding.
- How much water can the supply line deliver? Refilling capacity can matter as much as stored volume.
- What happens in hot weather? Water demand can increase substantially, making it important to check supply more frequently.
For example, a small group of pigs in a nearby pen may be manageable with a manually filled tank, provided the operator checks it regularly. A larger operation with multiple pens may benefit from automatic refilling and several watering locations.
Monitor actual consumption and drinking behavior after installation. If pigs crowd around a single opening or the water level drops too quickly, additional access or greater supply capacity may be necessary.
Cleaning, Replacement Parts, and Winter Protection
Even a well-designed hog waterer requires routine inspection. Dirty drinking compartments, failing valves, and frozen lines can prevent animals from obtaining the water they need.
Cleaning and Maintenance
Inspect drinking areas daily for debris and confirm that the water supply is functioning. Empty and clean tanks as conditions require, paying particular attention to feed residue, biofilm, and sediment.
Replace damaged components with parts intended for the exact model. Two similar-looking hog waterer float assemblies are not necessarily interchangeable.
For example, the 80-gallon Hog Waterer Float Valve is a replacement for the dedicated Sioux Steel 80-gallon waterer. It does not fit the separate sidewall Hog Drinker.

The Hog Drinker Float is intended for the tank-mounted sidewall drinker and is not a replacement for the 80-gallon waterer's internal float.

Checking this distinction before ordering helps prevent purchasing the wrong replacement part.
Preventing Frozen Water
Winter watering requires attention to both the drinking area and the supply system. A heated tank is of limited use if the incoming line freezes.
The 80-gallon hog waterer has optional heating configurations, including a heater designed for its base. Check the specific product configuration and electrical requirements before purchasing.
For an outdoor trough or tank, any heater must be approved for that container and installed according to its instructions. Insulation or an energy-free design should not be assumed to prevent freezing under every weather condition.
Signs Your Hog Watering System Needs Improvement
A waterer may hold enough water on paper but still fail to provide adequate access in practice. Watch for frequent empty tanks, excessive crowding, leaking valves, unusually wet pen areas, and animals having difficulty reaching or activating drinking stations.
Reduced feed intake, lethargy, and other changes in behavior can also signal a problem with water access. If dehydration is suspected, restore reliable access to drinking water and promptly consult a veterinarian, especially when animals appear weak or severely affected.
The related guide to dehydration in hogs discusses warning signs and the importance of properly functioning waterers.
Frequently Asked Questions About Hog Waterers
What type of waterer is best for pigs?
There is no single best design for every operation. Dedicated poly hog waterers are a practical option when accessible drinking compartments and stored water are priorities. Tank-mounted drinkers can work well with compatible poly tanks, while nipple systems may suit pens with appropriate pressure and carefully positioned drinking points.
Can an automatic hog waterer operate without electricity?
Some automatic systems use mechanical float valves and do not require electrical power to operate the valve itself. However, a pump may be needed to supply water, and freezing conditions may require supplemental heat. Always check the requirements of the complete system.
Can a sidewall Hog Drinker be installed in a metal stock tank?
No. The Sioux Steel sidewall Hog Drinker offered by Barn World is designed for compatible polyethylene tanks and is not intended for metal stock tanks.
Is an 80-gallon hog waterer large enough for my herd?
That depends on the number and size of the pigs, temperature, refill frequency, and number of drinking locations. Evaluate actual daily and peak demand rather than relying on storage capacity alone.
What is the difference between a hog waterer float and an automatic supply valve?
An internal float may regulate the water level in a drinking compartment. An automatic supply valve controls incoming water to replenish the tank. Some systems use both functions, so replacement parts must be selected for the appropriate purpose and model.
Making the Right Choice for Your Operation
Start with the pigs and the available water supply, then choose a drinking arrangement that provides appropriate access, adequate flow, and manageable cleaning. Evaluate tank capacity, drinking height, refill options, and replacement-part availability together.
For operators choosing between a complete hog watering tank and a poly tank with drinking attachments, Barn World's product specifications provide the dimensions, equipment options, and compatibility details needed to compare the alternatives before ordering.
