Keeping water points in the pasture frost-free

Why frozen water is dangerous

Horses that cannot take in enough water eat less roughage or digest it less efficiently. This increases the risk of impaction and sand colic. Particularly in older horses or animals that already tend to drink less, problems can accumulate quickly. During frosty periods, check at least twice a day that water is freely accessible. Record any issues in the EquiSight horse profile so that you can recognise patterns across multiple winters.

Simple measures at no extra cost

Not every yard has the budget for a heated installation. There are, however, inexpensive solutions that work well in light frost down to around -5 °C.

• Use a black plastic trough: it absorbs sunlight and freezes less quickly than a metal trough.
• Place the trough in a sheltered spot, out of the wind and preferably on the south-facing side of a barn or fence post.
• Add a floating ball (tennis ball or a purpose-made drinking trough ball): the movement slows ice formation.
• Pour hot water over the ice in the morning and evening, then refresh completely with lukewarm water.
• Use an insulated trough or wrap a standard trough in insulation material with a waterproof outer layer.

Heated drinking troughs: what are your options?

During prolonged periods of frost, investing in heating is worthwhile. There are three common systems.

• Drinking trough with a built-in thermostat heating mat: switches itself on at 3 °C and consumes approximately 60–150 watts.
• Immersion heater: a separate heating element that you place in any existing trough, suitable down to -15 °C.
• Electrically heated drinking post: ideal for larger pastures with multiple horses, but requires a fixed power connection.
• Solar panel with battery and heating element: independent of the power grid, well suited for remote paddocks.

Electrical installation: safety first

Water and electricity are a dangerous combination. Have every electrical installation in the pasture fitted or inspected by a certified electrician. Use only IP67-certified components that are approved for outdoor use. Check cables and connections every autumn before the first frost period for wear, rodent damage or corrosion. A residual current device (RCD) is mandatory. If in doubt: choose a safe immersion heater with a short cable over a homemade setup.

Alternative: mobile water tank

No power connection in the pasture? An insulated mobile tank of 200 to 500 litres, filled with lukewarm water, is a practical interim solution. You drive by the paddocks twice a day. The downside is the time investment, but it also gives you the opportunity to see directly whether horses are drinking normally. Combine this with the calendar in EquiSight to schedule rounds and share them among yard staff.

Checklist: preparation before November

• Check and replace worn heating elements and cables.
• Test the thermostat of heated troughs: set it to room temperature and check whether the element activates.
• Clean all drinking troughs thoroughly — scale and algae reduce the insulation value.
• Ensure sufficient minerals in the ration: cold reduces the urge to drink, and a salt deficiency reduces it even further.
• Save the electrician's contact details in EquiSight for emergencies.
• Inform yard staff and riders about the daily inspection protocol.

How much water per horse per day?

As a guideline, allow 2–3 litres per 100 kg of body weight per day with normal roughage. A 600 kg horse therefore needs at least 12 litres, but in practice consumption of 25–45 litres per day is common. In cold weather, horses prefer water at around 10–15 °C rather than ice-cold water at 2 °C. Heated troughs that keep water at 8–12 °C therefore noticeably encourage water intake. Record any abnormal drinking behaviour in the horse profile so that you can intervene in good time.