Once you have a good suction going in the water then you adjust the little ball valve on the side so your getting a good mixture of water and gravel going through your hoses while supplying water to the hole to keep the nozzle in water. It works just like a dredge nozzle except there is a little diverter valve so that you can fill your hole with water and initiate suction. It works great for cleaning the bedrock once you have reached it. It was a bit to far out in left field so I will try again today to make a post that is a little more worthy of re-posting.This Photo here is My Father-in-Law operation a very cool Device, it is a dredge nozzle that allows dredging on the dry ground instead of in the water. First off I want to apologize for yesterdays post.
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