About Drain nozzle
Drain nozzles or sewer nozzles are attachments which enable the cleaning of drains. The most common nozzles have three or four rear facing jets which help pull the nozzle along and one forward facing jet which clears the blockage athough other nozzle arrangements are available as well as rotating drain nozzles. Ideally these nozzles will give optimum performance on high flow machines but in many cases they will provide decent cleaning results on lower output machines.
As with any nozzle it is important to get the correct size for your pumps pressure and flow in order to achieve the best cleaning results and to prevent over loading yout machine.