Do you have the equipment manual with you? What does your equipment manual say? It is always a good starting point to refer to the manual given by the supplier. By experience, we let the 1st Dosatron equipment be installed with our supplier with our local maintenance guys in place. From observation, we saw that it is not difficult to be installed,just need a suitable stand (or post) and water supply and it can be used already. It is much simpler if you install the "venturi" type, provided you have adequate water flow.
After that, some of the relocation we did on our own with the agreement with supplier. We may have a simpler type, but you can always refer to manual to also check that you have the resources available for it to be operational efficiently.