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Sonic barnacle protection

Discussion in 'Technical Discussion' started by dennismc, Apr 4, 2012.

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  1. dennismc, Apr 4, 2012
    #1
    dennismc

    dennismc Senior Member

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    Anyone ever actually seen this system work...seems copper anti fouling is about to be banned jut about everywhere ??
  2. AMG, Apr 4, 2012
    #2
    AMG

    AMG YF Moderator

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    In Sweden, copper was banned ten years ago. Now they banned zinc and allowed copper again..!
  3. Yacht News, Apr 4, 2012
    #3
    Yacht News

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    Well how about this... It claims to be the world's first remote controlled hull cleaning robot for yachts.

    Attached Files:

  4. Capt Ralph, Apr 4, 2012
    #4
    Capt Ralph

    Capt Ralph Senior Member

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    I have been around a few boats that (try) to use them. Some personal notes with myself I'll try to pass on.
    Seems they do not work well thru cored hulls.
    The clicking noise will drive you crazy until you get used to them. But then, you know there on and working.
    Stay with the zoned controller; Bow, midship/ER, After mid and rudders.
    Drill, tap and mount a puck on each rudder post or tiller. The click it makes will really work well and keep the rudder and some of the prop clear. Don't worry about mounting to the strut backing, the cutlass bearing will not let the chirp protect the shaft. One over the shaft is better.
    The more the better. You keep splicing more per zone in parallel like 12vdc light strings.
    These will not cure all bottom fouling but keep it down some to allot. A diver is still needed for an inspection and hull wiping.
    If you do try them, please let us know how they work.

    rc
  5. Capt Ralph, Apr 4, 2012
    #5
    Capt Ralph

    Capt Ralph Senior Member

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    Now, I'd like to know more about this. Don't think it's going to do running gear well.

    UPDATE
    I found some U-Tube video. erree aahhh. Don't think it's there yet. Armchair I-Pad junkies may enjoy it.
    Last edited: Apr 4, 2012
  6. K1W1, Apr 4, 2012
    #6
    K1W1

    K1W1 Senior Member

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    Found this when looking up Copper Antifouling banned.

    Copper in Antifouling
  7. discokachina, Apr 4, 2012
    #7
    discokachina

    discokachina Senior Member

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    Parlez vous Francais? HULLTIMO 2 Haute definition - YouTube
  8. Yacht News, Apr 4, 2012
    #8
    Yacht News

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  9. AMG, Apr 4, 2012
    #9
    AMG

    AMG YF Moderator

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    He did not explain what keeps it to the hull instead of sinking or floating..? I would have understood if it was a steel hull and magnetic, but this is beyond me...:confused:
  10. AlfredZ, Apr 4, 2012
    #10
    AlfredZ

    AlfredZ Senior Member

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    Je ne parle pas le Francais, pourtant je peux vous dire... il est magnifique!:)

    I think it is kept in place by suction. If you notice the shots of its activity underwater shows the white shoot in the middle is pushing the water out and away from the device, I think this creates vaccum between the hull and the bot so it clings by suction. Just a wild guess!

    Cheers,

    Alfred
  11. Capt J, Apr 5, 2012
    #11
    Capt J

    Capt J Senior Member

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    How are these units in terms of electrolysis being that they are powered by 12volts?

    I remember as a kid there was a company called barnacle buster or something to that effect that came out and did have units that emitted sound. They never seemed to gain acceptance and went out of business.
  12. Capt Ralph, Apr 5, 2012
    #12
    Capt Ralph

    Capt Ralph Senior Member

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    Barnacle Buster is alive and well. I am talking about them or this technology. The sonic pucks are secured inside of the hull.
  13. Yacht News, Apr 5, 2012
    #13
    Yacht News

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    Well that is the most plausible answer.
  14. GFC, May 2, 2012
    #14
    GFC

    GFC Senior Member

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    As I watched the video it reminded me of the action of the type of scrubber used in a swimming pool. In that application, it's not the suction that keeps it against the bottom of the pool, but the jet of water that is pushed out the top of the scrubber.

    Alfred described above the "white shoot in the middle pushing the water our and away from the device". IMO it's that jet of water shooting out that holds the scrubber against the side of the hull.
  15. AlfredZ, May 2, 2012
    #15
    AlfredZ

    AlfredZ Senior Member

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    So we agree on the port but not the force in action! ;)

    I agree with you that the vortex caused by the water pushed away from the hull is what makes it stick, describing it with "Suction" was not so right after all. Thanks.

    Cheers,