Gestating sows will consume 11-22 l/day (3-6 gallons/day). Two days before farrowing, daily water consumption increases to around 19-22 l/day (5 or 6 gallons/day) to satisfy udder development. After farrowing, a nursing sow will be consuming around 19-22 l/day (5-6 gallons/day). As the piglets’ age, milk production increases and so does the sows water consumption. At 21 days of lactation, a sow’s water consumption may be 38-42 l/day (10-11 gallons/day). In summer months or in areas with a hotter climate, water intake may increase by as much as 50%.