The Codes, of Recommendations for the Welfare of Livestock : Pigs (1990) suggest that sufficient clean water should be made available to pigs but makes no specific reference to sucking piglets. Similarly ARC (1901) provide no recommendations on the water requirements for this class of pig. The RC 1989 proposal, for a Regulation concerning minimum standards for the protection of intensively farmed pigs, is more specific. It states that all pigs after the age of two weeks shall have access to adequate fresh, potable water at all times. The aim of this study was to establish the supplementary water requirements of sucking piglets weaned at three weeks of age and whether this reguirement was modified by the provision of creep feed.