Sorry the site will not let me attach a picture of the suction nozzle.
Set includes both male and female 2' Banjo Quick connectors for your pressure hose. Just like it's predecessor, the stainless steel tip on the HF300 in coned down for maximum suction and minimum plug-ups. I have a Honda GX engine driving a Koshin pump which will deliver 240 GPM.īeing a commercial diver I have always used large diameter underwater air lifts supplied with large compressors which move massive amounts of sea bed, I am hoping this dredge will move a decent amount of material. The Hydro-Force 300 uses a 3' suction hose and a 2' pressure hose for awesome Dry Land Suction Power. Standard setting: With the sluice box at water height as shown below. to ramp a pump up for maximum suction at the nozzle, the effect on fine gold recovery may be negative. 5 gallon bucket and gold pan for cleanup. 1 ½ camlocks are supplied with the dredge for easy hose pump connection. I am thinking of a 4 inch suction pipe supplied from a 2 inch pressure hose same as in the photo but I am wondering will I have to reduce the diameter of the pressure pipe as it enters the suction pipe, I am sure I have read somewhere that the reduction should be approx times 4 so that would make the reduction diameter at 1/2 inch as it joins the suction hose. a suction - nozzle for the pump pivotally mounted upon the support and extending beneath the same, means connected with said nozzle and extending to. Pressure hose for pump connection to dredge. So I am looking at getting one made from a local blacksmiths at short notice. First post on this very interesting and informative site, I'm looking for a some advice from the experienced dredging people on this site, I am from England and am looking to remove a considerable amount of sand and small pebbles/rocks from the seabed at approx 30ft depth, I was looking at buying a 4 inch suction nozzle from an ebay site based in the USA (photo below) but as this job will be coming up in the next week, the delivery time is too long.
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