Methods, systems, and apparatus to resolve offers to provide an item to a consumer are described. The received signal is analyzed and conditions the control valve for opening if watering criteria is met. The authentication node then receives a request for authentication from a requesting node, and once the requesting node is authenticated, the authorisation node sends an identifier for the requesting node and a first token, which is derived using the secret and the identifier. A combined \u201cdesired\u201d quality of service parameter using the first and second quality of service parameters may be determined. The bathing balls tightly abut against the circumference of the main body.