In Hinduism, Samprokshanam is sprinkling of mantra puta (sanctified and sacred) water for Shuddhi (purifying) in temples. Samprokshana is prescribed in Agama Shastras. The following are the circumstances under which samprokshanam is required according to Pancaratra Agama; samprokshanam is necessary when the daily worship is interrupted because the icon falls below the surface of the earth; it falls down due to rain, storm, etc; it is touched by unclean individuals; it is worshipped by people who are not initiated by pancha samskara, by sellers of Veda, by a priest who has married outside his caste, or a patient etc; it is touched by a dog, a fox, a mule, or a crow; an anthill has grown; it undergoes change from one agama to another agama (Sastrantara Pratishtha).
Samprokshanam involves anukarpanam (invocation of the deity); kumbha avahanam (invoking the deity in a pot); abhyarcana (offering worship), i.e., abhyaracana; agnikarya (offering oblations to God by pouring thee into a consecrated sacrificial fire), i.e., subhamuhurta samprokshana (sprinkling of water).
Source - Encyclopedia of Hinduism Volume IX - IHRF