Usually with the number of hoses being used, along with the number of entry points, it would tend to indicate that the waste-tank is being used for several heat control measures.
Ordinarily, the primary and secondary orifice flows are recycled back to the inlet water flow source or water box (which this machine may not have). So you may make independent lines with jetted openings into the wastetank. The line with the solenoide valve is probably a bypass line to flow over-temp water to the wastetank under thermostat control, thereby being displaced by cooler water entering the system from the water inlet.
Another hose may be connected to an additional dump point created by a thermal valve.
On machines that seek to minimize the use of fabricated orifice bodys, the less expensive solution is to simply run separate lines to the recovery tank, each with it's own spray-jet of a given size to manage a particular flow. Some lines, like safety temp relief lines will use a very large opening to dump hot water fast. While others, such as the primary and secondary orifice lines will dump at a small trickle, since their only purpose is to permit real-time flow across a sensor/sender.