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Water Systems for Pastures

A good pasture water system makes grazing easier, keeps cattle healthier and protects streams and ponds. It also needs planning, because a poor layout is expensive to fix later.

Start with a plan on paper

Before buying tanks or digging a trench, sketch your pastures, fences, lanes, existing water and the places cattle already like to gather. Think about the grazing plan you want in five years, not just today, since water placement often decides how many paddocks you can use.

Walk the ground with your extension agent or a conservation planner. They can help match the system to the soil, slope and herd.

Choosing a source

Water can come from wells, springs, ponds, streams, rural water lines and hauled supplies. Each has strengths and limits. A well is dependable but costs to drill and power. A spring can be excellent if protected. Ponds and streams are cheap but easily fouled and vulnerable to drought.

Test the source for quality and think about what happens in a dry year, because a source that fails in August is a risk to the whole herd.

A rural water line may be simple to tap but depends on the supplier and on pressure, so ask about reliability and any rules for livestock use before relying on it for a large herd.

Tanks, troughs and pipelines

Tanks can be freestanding, permanent or tied to a pipeline. Pipelines move water from one source to many tanks, which lets you rotate cattle without losing water access. Size tanks for the group, with enough space and refill rate that cattle can drink without crowding. Place tanks on firm, well drained pads so the area around them does not turn to mud.

Add a float valve or other shutoff, and consider a way to keep wildlife and young animals from drowning or fouling the water.

• Firm pad around every tank
• Fence-line tanks that can serve two paddocks
• Valves that allow repairs without draining the system
• Escape ramps for small wildlife

Power, pumps and moving water

Pumps may run on electricity, solar, wind, gravity or a fuel engine. Match the choice to your site and your tolerance for maintenance. Solar systems suit remote spots with no line power, while gravity systems cost little to run if you have the elevation.

Electrical and fuel work carries real risk. Hire qualified installers where needed and follow manufacturer, OSHA and extension safety guidance. Store fuel safely and away from tanks and feed.

Winter and drought planning

Cold climates need freeze protection. Buried lines, insulated tanks, heaters and designs that keep water moving all help, but each must be installed correctly. Drought tests every system, so know how much water you can supply and have a backup plan. Check tanks and lines daily in extreme weather and keep spare parts on hand.

Do a walk-through every fall and spring. Drain what needs draining, check valves and floats, replace worn parts and test pumps before you need them. A short list of spare fittings and a plan for who to call can turn a breakdown into a small problem instead of a crisis.

Protecting streams and ponds

Giving cattle a tank in place of a stream or pond usually protects the bank, the water and the animals. Fenced access points, hardened crossings and buffer strips can help if cattle must use natural water. The USDA Natural Resources Conservation Service and local conservation district can explain technical help and assistance programs. Program terms change, so ask them directly and do not rely on old information.

Common mistakes and what to ask

Mistakes include undersized tanks, poor drainage around troughs, one water point for a large pasture and installing a system before settling on the fence plan. Another is ignoring maintenance until something fails.

Ask your NRCS office, extension agent and a qualified installer about design, costs and options. Talk to your lender or accountant about financing, and treat this article as general education, not financial advice.

• How much water will my herd use in peak heat
• What happens if the source fails
• Can this system serve future paddocks
• Who maintains it and how often

More in Nutrition, Forage & Grazing

• Forage Testing and Ration Balancing
• Pasture Management Basics
• Rotational Grazing for Beef Cattle
• Grazing Stocking Rates
• Carrying Capacity Calculations
• Stockpiling Forage for Winter