I to am looking at getting either a xjet or m5. From what I have read on the net is that is also used for rinsing. I am not sure if it is a high pressure or a low pressure rinse. I belive it will be a low pressure rinse. I have found a site on the net that sells the m5 for $129.00 and the xjet for around $113.00, but I don't know if their is something missing form these packages, because most of them (M5) advertised sell for around $160.00- $170.00. Another question I would liked answered is which tip for a 4000psi/ 3.5gpm rig (13?).