The council shall appoint a city manager for an indefinite term by a vote of a majority of all its members. During his tenure of office, the city manager shall reside within the city after being given a reasonable time for relocation. He shall be appointed solely on the basis of his executive and administrative qualifications. No council member may be appointed as city manager during the term for which he shall have been elected nor within two (2) years after the expiration of his term. In case of temporary absence, suspension, or disability of the city manager, the council shall designate an "acting" or "interim" city manager. In case of a permanent vacancy, the council shall appoint a city manager within a reasonable period of time. The council may discharge the city manager at anytime by a majority vote of those elected to and constituting the council for "the good of the service". The council may also enter into a written agreement with the city manager specifying the terms and conditions of his employment. The city manager shall give bond in such amount and upon such conditions as the council may require, but in no event shall such bond be less than $25,000.00. The city manager may also be, at the discretion of the council, the general manager for the Purcell Public Works Authority or a member of any other board, authority or trust.