First it pumps water into the suction hose to agitate the mud, silt or sand. The Toyo’s are quit a bit cheaper then the P&S, but they don’t even come close to its capabilities.If you need to move Sludge or dig out a pond or slew, this pump is for you. After using the P&S Pump system it’s hard to believe I haven’t heard about them until recently. When we enter an area that doesn’t have the large debris we remove the diver-controlled system, attach the jet ring, and dredge using the crane-controlled system. The P&S pump has a unique attachment that allows 2 divers dredging using separate 6” suction hoses and suction heads that allow us to dredge debris 5” or smaller but expose the larger debris so it can be moved out of the ditch by the diver. We are now using the 6” P&S crane-controlled, or diver-controlled systems to move debris up to 5” diameter with no problems (that’s right… a 6” pump can pass a 5” rock). A few months ago, we were faced with the possibility of not being able to complete our project during this fish window, but I did some research online and found P&S. Our dredge permit only allows us to hydraulically dredge the material and so a clam bucket is not an option. The Toyo removes material smaller than 1 ¾” and leaves a pile of clean rock below the intake that it’s unable to pass. The project I’m currently on we brought a 6” Toyo pump because the seafloor was to be consisting of sand and silt, but it’s actually a mixture of sand, silt, and rocks up to 8” diameter.
I’ve been in the marine construction industry for 26 years and have done my share of dredging using various sizes of submersible trash pumps.
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