A system and method that provides for an exchange of messages and associated data across a plurality of communication network system entities for one or more communications networks, wherein the system includes one or more distributed message brokers which are in communication with any number of communication network system entities. The device includes a first end, a second end, and a shaft connecting the first and second ends. A support is provided for the line marking head such that the line marking head is movable laterally relative to the chassis. On filling a pressure vessel, a pressure pump then supplies the preservative and fluid mixture under pressure to the pressure vessel in which the wood or wood product is being treated.