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DPV, Underwater blowers
- Thread starter braich77
- Start date
OldBeechnut
Well-known member
Funny you posted this I was just talking to my hunting partner about if you could use a jetski to move sand quick, not quite what your talking about but the same results. I have many places their's18 inch's of sand. If you could move an area of about 10 feet by 10 feet the hunting would be incredible. I wonder how much volume with of those UW blowers would move.
Water wizard
New member
I'm just making a prop wash with an outboard. You cover the propeller with a metal housing and attach a hose to the housing. I've got a spare outboard so it's not the one used to power the boat. You have an elbow joint which pushes the water from the propeller down the hose. I've got a20hp 2stroke so I recon it will push a lot of sand pretty quick. Anyone ever tried this?
OldBeechnut
Well-known member
WW take some pictures.....I like your idea better. I hit a low productive spot yesterday that got me thinking more about the subject.
I've seen that done on TV by professional treasure hunters..diverting the prop wash through a 90 degree elbow contraption that is...though it would be cool to zip in some place on a jet ski, pop on an elbow nozzle, and ream around in the area right quick. Theoretically, I guess a guy could back a boat into a beach location, hop over the side and run the outboard for a little to blow off a lot of surface sand without attracting any undue attention, heck, maybe drop a few anchors off the back and let 'er sit there and idle for a little, and really scour it out good!...don't know if this will ream out a deep enough area like a nozzle would, but its a thought.
Mud
Mud
bootyhoundpa
Well-known member
I have no experience in these matters.but might a dredge like they use on that bering sea gold show not be better... that way you wouldn't murcky up the water at the sight where you wish to move sand from....... also might be able to force the sand and contents through a screen kinda like a power sifter....even better yet if there is some way of setting up a very large screen so dime sized objects and larger are recovered in theory you could have one guy vacuuming on one end and the other guy on the discharge side guiding the pay dirt into the screen.... no detector required..... im sure you fellows have invested a lot more thought into this than myself... just a momentary brainstorm..... I can see how being able to move the sand could make all the difference...... good luck with this project...be safe...
MHirschmann
Member
I purchased a Bladefish dive scooter just for this purpose. I will tell you that it sounds great in theory but does not translate well to the "real world." The big problem is anchoring yourself well enough to not just blow yourself back underwater. I even tried carrying extreme weight to help but I was not able to make it work. I even tried carrying a smaller blade anchor and securing myself to the sand but nothing helped. Now, if you are trying to move a lot of sand, I think the jet-ski idea is a great one. I imagine you would have to secure yourself to the bottom with a big anchor/weight and then you could blast away. It probably would not be a monumental task to figure out a bolt-on coupler for said purpose.
I would not recommend a dive scooter for moving a larger volume of sand. I wanted to use mine for quick work rather than fanning for deep hits. For moving sand the size of a typical dig, a scooter would be sufficient, but for moving the large quantities you guys are talking about (10x10) I think figuring out a solution with a jet-ski would be a better move.
As for the prop-wash idea, you need some serious wash to accomplish the results we are talking about. Depending on where you live, you might even need a license as you might be considered a dredging/salvage operation. That and you will be drawing attention to yourself as a treasure hunter, which could cause you tax and legal liabilities/obligations.
I don't want to rain on your parade, as I am always trying to figure out new/different/better ways of finding the goods, but I wanted to join in give my thoughts on this topic. If you can figure out a good way to secure yourself to the bottom then a dive scooter might be your best option.
Good luck!
-Marc
I would not recommend a dive scooter for moving a larger volume of sand. I wanted to use mine for quick work rather than fanning for deep hits. For moving sand the size of a typical dig, a scooter would be sufficient, but for moving the large quantities you guys are talking about (10x10) I think figuring out a solution with a jet-ski would be a better move.
As for the prop-wash idea, you need some serious wash to accomplish the results we are talking about. Depending on where you live, you might even need a license as you might be considered a dredging/salvage operation. That and you will be drawing attention to yourself as a treasure hunter, which could cause you tax and legal liabilities/obligations.
I don't want to rain on your parade, as I am always trying to figure out new/different/better ways of finding the goods, but I wanted to join in give my thoughts on this topic. If you can figure out a good way to secure yourself to the bottom then a dive scooter might be your best option.
Good luck!
-Marc
I have had great success with the scooter. I had the same issue as MH but over came it by using a screw in anchor. Like whats used for trailor homes. The cork screw blades are wide enough to hold well. Dont bother with the kind used for dogs. It pulls out pretty quick and you waist dive time. Battery lifes around 45 mins. I have a barge i am considering building a elbow for but i have not had time this year as a matter of fact ive only been out about four times due to work. For a large area a jet ski or boat would do well. I would think the boat would be less obvious
Good luck send me pm with picka if u dont post.
I quit posting due to lurkers i had a guy follow me all over to see where i was hunting. If i hunted the ocean it would be diff. But lakes are hit hard here and my finds are my kids collage funds.
Best of luck and be safe.
Chad
Good luck send me pm with picka if u dont post.
I quit posting due to lurkers i had a guy follow me all over to see where i was hunting. If i hunted the ocean it would be diff. But lakes are hit hard here and my finds are my kids collage funds.
Best of luck and be safe.
Chad
OldBeechnut
Well-known member
Very good tip on the screw in anchor, thanks for sharing...