Hatha yoga is a moderately-paced, catch-all name for the vast menu of poses that are practiced wherever you can roll out a sticky mat.
An 1100 lb horse on a dry forage diet at an average temperature of 68 degrees Fahrenheit will need a minimum of 6-7 gallons of water per day or 48-56 lbs of water, and many horses will drink more water than the minimum.
Horses will generally consume more water than they need if given access to a palatable water source. Horses at rest in a moderate climate will generally consume between three and seven litres of water per 100kg of bodyweight. This translates to around 4-9 US gallons for an 1100 lb. (500 kg) horse. Diet plays a major role in determining voluntary water intake and requirements.