Same pump/engine combo,picking up a small bowling ball. Jet vs Suction nozzle was answered many times at demos with our company at the Annual Jamboree at Follows camp in Azuza that we worked every year. But with a suction nozzle it's usually going into a crash box or something similar that agitates the slurry too. In a jet setup it does too, but then it's reagitated when it passes the pressure inlet in the jet right before it hits the box. Suction nozzles also clog up way way more than jets, especially if you are using a jet with one of the newer style quick connectors that have no internal upsets between the hose and the jet.Įdit: caution cone? never heard of anything like that.Įdit 2: Also there is some debate that suction nozzles actually get better recovery rates because the slurry can settle by weight in the hose before it hits the sluice. Unless you really got some shallow pay that needs dredging.
Way too unwieldly (2 hoses versus 1, plus the nozzle is just lots bigger and no swivel). I wouldn't use a suction nozzle on anything bigger than a 3" personally. One goes straight down the nozzle with no resitrictions, the other (in a jet) usually hits the side of the jet tube at some angle, dispersing energy. If you look at the pressure line inlets in both a jet and suction nozzle I think you can see why. There has been some studies done that show that using a suction nozzle in place of a jet connected directly to your flare actually has greater suction than a jet. So you won't rooster tail your sluice if you pull it out of the water.Īlso, there is some debate as to which nozzle has "better" suction. With a suction nozzle, it's the nozzle itself being primed by the pressure line, and the pressure flow is directed right down the center of the suction line where it connects to the nozzle.
Since the pressure line goes directly into the jet and into your flare you are going to rooster tail out high pressure water straight outta your box. I don't think it's cavitation proper, it's just that when you pull the nozzle outta the water when using a jet then you are going to lose the prime on the jet.
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