R.C.S.A. § 29-232-76
Blow-off piping
Cite as Conn. Agencies Regs. § 29-232-76
Each miniature boiler shall be provided with a blow-off connection, not less than one-half inch iron pipe size, directly connected with the lowest water space. Blow-off piping shall not be galvanized and shall be provided with a valve or cock.