![]() The 15 feet of 1½ instead of 2" shouldn't make a difference. So look at the orifice on your old one and compare them. The orifice should be around ½ to ¾ and I would bet that this nozzle may be designed for a smaller motor with a 3/8" orifice. There is either a clog in the jets tube going into the nozzle or the reducers orifice is too small for the P180. With a P180 that should suck your fingers off with the ring on, so. It doesn't mean you can't still move rocks around with the nozzle, just let it do it's job. That effectively prevents overfeeding the sluice too. I don't dredge but that seems to me to be the best technique anyway since it mostly allows steady suction and flow all of the time without surges or temporary stoppage of material being sucked up. That gives you the impression it is not sucking as hard when actually, overall, it is but some of the suction is unproductively diverted through the gap when you hog or put it directly on a large rock.* I think you just have to get used to the way it is designed to work and I think that is.that it probably works best (lets the dredge suction do the work) when held just next to the gravel rather than trying to gouge or hog it. You probably are used to gouging or hogging the material with the nozzle (that kind of forms a seal on a regular nozzle) and this nozzle will leak around that seal. ![]() ![]() If you were to put your hand over the ring and seal that gap you will probably have the same suction you are used to. I don't know if it is the same but the one I saw has a ring that is welded at an angle so that one edge of the ring touches the nozzle and the opposite edge is 1/4" or so away from the nozzle forming a gap.
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