[header] How to take care of a horse in hot weather [title] Clean all water sources daily. [step] Algae and bacteria flourish in warm, moist spaces, particularly streams, ponds, and watering troughs. Wash out water buckets, water tanks or fountains so the water your horse drinks will remain uncontaminated. 
Provide cool drinking water to ensure proper digestion; water that is too cold will interfere with digestion. [title] Feed your horse foods high in water content.