(a) A facility shall connect to and use a public water system.
(b) There shall be no cross connections between water systems that are safe for human consumption and those that are, or may become, unsafe for human consumption.
(c) Minimum water pressure available to each plumbing fixture shall exceed twenty (20) pounds per square inch.
(d) The plumbing system shall supply an adequate amount of hot water at all times to meet the needs of each patient and the functioning of the various service areas.
(e) Hot water temperatures at fixture outlets shall be regulated to provide tempered water in range of one hundred ten (110) to one hundred twenty five (125) degrees Fahrenheit.