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Where to buy screw/helical anchor/mooring?

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  • Where to buy screw/helical anchor/mooring?

    I'm looking to make a good mooring for my 19' bowrider. It will be in approx 5' of water with a hard, sandy bottom. I'm thinking that a screw or helical type anchor would be best, like this:
    http://www.**************/product.do?no=88163F

    this would be a permanent mooring. Any thoughts on the best way to secure the boat, and perhaps some other sources for this type of anchor? And what size should I be looking at? Thanks!
    '86 Glastron Conroy X-19, Merc 170
    '04 Carolina Skiff J14, 25 hp Mercury
    sigpic


  • #2
    Re: Where to buy screw/helical anchor/mooring?

    An answer to one of your questions would be it gets hooked to your bow ring.

    Many people who moor also use one of those small floats that has a long thin pole sticking out of it. This way when you come back to the mooring You can just go to the bow of the boat and grab the pole and rehook a line from the float and the other end clips back onto the bow ring.

    They look like this:
    http://www.iboats.com/Mast_Buoys/dm/...view_id.426990
    2007 Lund 1425 Classic SS
    2007 40 hp Merc 4 stroke EFI ELPT

    http://s198.photobucket.com/albums/a.../Boat/?start=0

    http://s198.photobucket.com/albums/a...-8-08/?start=0

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    • #3
      Re: Where to buy screw/helical anchor/mooring?

      Thanks, though I'm not as concerned about securing the boat to the mooring/float; I'm more interested in anchoring the mooring itself to the bottom.
      '86 Glastron Conroy X-19, Merc 170
      '04 Carolina Skiff J14, 25 hp Mercury
      sigpic

      Comment



      • #4
        Re: Where to buy screw/helical anchor/mooring?

        Originally posted by nola mike View Post
        Any thoughts on the best way to secure the boat,
        Sorry, I read this part of your post and gave you an answer to the way it was worded! I thought you meant how do you secure the other end to the boat too!

        Also, just search out your question on google. There is a lot of information out there.
        2007 Lund 1425 Classic SS
        2007 40 hp Merc 4 stroke EFI ELPT

        http://s198.photobucket.com/albums/a.../Boat/?start=0

        http://s198.photobucket.com/albums/a...-8-08/?start=0

        Comment



        • #5
          Re: Where to buy screw/helical anchor/mooring?

          Originally posted by Expidia View Post

          Also, just search out your question on google. There is a lot of information out there.

          yeah, i've searched google, and while i can find a number of manufacturer sites, the link i posted is the only retailer that i've found. i'm looking at the screw-type anchor because it seems to be the best option for my situation.
          '86 Glastron Conroy X-19, Merc 170
          '04 Carolina Skiff J14, 25 hp Mercury
          sigpic

          Comment



          • #6
            Re: Where to buy screw/helical anchor/mooring?

            Like you have said "You" are thinking of that screw system. It would not be the direction I would go. I don't know that much about anchoring a mooring but I've been with a buddy as he was setting his up on lake champlain in NY. He used a large weight and many feet of big heavy chain. And I mean "BIG" chain links.

            Even with all this effort his Searay cabin cruiser floated off the mooring the next season only to have a neighbor down the lake call him on the phone and say his boat is crashing up against the rocks in front of the callers house.

            I don't have any connection with iboats but they have a broad line of products and a search turned up this type of mooring system.

            http://www.iboats.com/Bridle_Plate_M...view_id.426997

            If it was my boat I like the looks of this set up rather than that screw pole.
            I have one of those for my dog. I wouldn't trust my boat being tied up to it when the wind and rough waters hit your rig.

            You can make the weight out of cement that you mix and pour into a plastic bucket. Break the bucket away after the cement hardens and float it out to where you want to drop it.

            And by the way . . . it's just my opinion, but that device you are looking for seems more like a sand spike. Which is what boaters sink into a beach for their dog or boat to be land moored to while they spend the day on the beach. I would not plan to sink it into the sand underwater to hold a boat no matter how hard you think the sand is. I would not use that device to anchor a 2000 lb plus boat to unless you sink it into the middle of a bucket of cement like I described above.
            2007 Lund 1425 Classic SS
            2007 40 hp Merc 4 stroke EFI ELPT

            http://s198.photobucket.com/albums/a.../Boat/?start=0

            http://s198.photobucket.com/albums/a...-8-08/?start=0

            Comment



            • #7
              Re: Where to buy screw/helical anchor/mooring?

              cement block is a pretty crappy anchor for a number of reasons. systems that work best embed themselves into the sand and have far more holding power than just weights. that's why you don't see anchors that are just blocks of weight, and why a 20# properly designed anchor can hold a boat that weighs 100x more. the firm sandy bottom that i have makes mushroom or dor-mor anchor (http://www.dor-mor.com/) i think less effective, while a helix anchor in this condition should be better.
              '86 Glastron Conroy X-19, Merc 170
              '04 Carolina Skiff J14, 25 hp Mercury
              sigpic

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              • #8
                Re: Where to buy screw/helical anchor/mooring?

                Is this mooring off your land? If so I would get one of the local cement people that make these 1000lbs weights and chain it up rather than trust that thing. What you are trying to use would pull out in the 1st storm. remember telephone poles are also embedded int the ground, your boat is not. Any Concrete place can make you what you need, 1000lbs of cement on the bottom with a heavy chain will usually withstand anything but a hurricane.
                The reason I do what I do is in the avatar above.

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                • #9
                  Re: Where to buy screw/helical anchor/mooring?

                  Originally posted by mphy98 View Post
                  Is this mooring off your land? If so I would get one of the local cement people that make these 1000lbs weights and chain it up rather than trust that thing. What you are trying to use would pull out in the 1st storm. remember telephone poles are also embedded int the ground, your boat is not. Any Concrete place can make you what you need, 1000lbs of cement on the bottom with a heavy chain will usually withstand anything but a hurricane.
                  My point exactly. I was there at my buddies house the day his boat drifted off. I looked out his window and said "where are you keeping the cruiser now days"? He thought someone stole it until his phone rang. It's a 32 foot Searay and I too would have thought the mooring we put in would have held it. He had sunken some big mushroom weight and it dragged it along . . . boat mooring and all about a mile before it started hitting the rocky shore line.

                  Check with a few marinas and ask them how they set up their moorings. For my 2nd boat a 22 footer if I had to moor it (which I might have to) it would be with a 1000 lbs of cement block for a good solid mooring.

                  Or make sure you have enough insurance on the boat.
                  2007 Lund 1425 Classic SS
                  2007 40 hp Merc 4 stroke EFI ELPT

                  http://s198.photobucket.com/albums/a.../Boat/?start=0

                  http://s198.photobucket.com/albums/a...-8-08/?start=0

                  Comment



                  • #10
                    Re: Where to buy screw/helical anchor/mooring?

                    Where to buy? the answer is the link in your post.
                    Any thoughts on the best way to secure the boat. With a float and a line.
                    I'm more interested in anchoring the mooring itself to the bottom. The anchor screws into the lake bed.

                    More important is the size of your boat, exposure to high winds or seas, and is it a legal mooring area.

                    Nothing beats steel, small railroad wheels are great, with 20 feet of chain and a buoy on top. Steel equipment framing is good too, and it sinks into the bottom of the lake.

                    Will this have to withstand winter icing conditions.
                    Medford, WI


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                    • #11
                      Re: Where to buy screw/helical anchor/mooring?

                      ok, as luck would have it, my neighbor informed me that the previous owner had already installed a helical anchor, but that it was now lost on the bottom somewhere. well, at low tide i shuffled through the water until i found it. so now my problem will be to attach the boat to it (it's deeply embedded, and the eye seems solid--i'll take a better look this weekend). looks like i'm going to need 1) a heavy chain attached to the mooring of about 10' (1.5x water depth) 2) a light chain of 6' or so, 3) a buoy, and 4) some heavy duty nylon rope 2.5x my freeboard. questions:

                      1) how heavy, exactly, should the heavy chain be? i see "as big as you can", but a more solid # would be nice. this boat will be moored on the potomac, which is generally fairly serene but can get rough. i'm only leaving it in the water when i'm there, so i should know if something real severe is on its way in.
                      2) how do i attach the pennant to the mooring, and to my boat? as in, what knots/securing devices should form the loops in either end of the rope? looks like i can use some nylon-reinforced pvc for a chafe guard to attach to the chain shackle, and presumably to the chain hook/clip or whatever that i attach to the bow eye.

                      as for the mooring system, here's the info i was looking for on the helical anchors:
                      "Helical Piles or sea screws are not common,
                      but are exceptionally effective. These are long
                      shafts of high tensile steel with an attachment eye
                      at the top and large threads at the lower end.
                      These “screw anchors” are screwed into the bottom.
                      Common lengths are 8’ with threads of 10” to 14”
                      in diameter. When embedded into the bottom with
                      the top eye flush or into the bottom soil attached
                      to traditional ground tackle, their holding power is
                      exceptional. Recent tests have shown that their
                      holding power is vastly greater than any traditional
                      mooring system of mushroom or deadweight
                      anchors. These anchors have been used by the
                      offshore oil industry for more than 20 years and
                      are quickly appearing in the yachting market."

                      here's the source http://www.inamarmarine.com/pdf/Moorings.pdf

                      very useful info on moorings.
                      '86 Glastron Conroy X-19, Merc 170
                      '04 Carolina Skiff J14, 25 hp Mercury
                      sigpic

                      Comment



                      • #12
                        Re: Where to buy screw/helical anchor/mooring?

                        A nice degreased engine block buried in the bottom with a chain is pretty strong. We have water jetted a few of them into the bottom of the lake in 5-7' of water and once buried they do not come up. Fairly cheap too
                        This is a great link to boat specifications http://boatspecs.iboats.com/
                        Please, shop iboats first!!

                        Comment



                        • #13
                          Re: Where to buy screw/helical anchor/mooring?

                          yeah, i'll buy that if you bury them deep enough. what do you use/how do you jet a hole? and degreasing seems like it would be difficult, no?
                          '86 Glastron Conroy X-19, Merc 170
                          '04 Carolina Skiff J14, 25 hp Mercury
                          sigpic

                          Comment



                          • #14
                            Re: Where to buy screw/helical anchor/mooring?

                            Just a thought, I have a telephone pole guide wire ,augered into my front yard. We easily tipped a backhoe trying to pull it out, with bucket full of dirt. You may want to look at one of those. It is still in ground after trying many times.

                            Comment



                            • #15
                              Re: Where to buy screw/helical anchor/mooring?

                              Originally posted by nola mike View Post
                              yeah, i'll buy that if you bury them deep enough. what do you use/how do you jet a hole? and degreasing seems like it would be difficult, no?
                              De-greasing a stripped 4 cylinder is easy..... can or two of degreaser and the $2.50 DIY car wash bay to blast it off.

                              We had a gas operated water pump in the boat with the pick up in the lake connected to a hose outlet and a section of pvc 2" pipe...... run the pump and watch with a swim mask on....... you can really blast the bottom away when the engine block is falling in the hole.

                              We had fun
                              This is a great link to boat specifications http://boatspecs.iboats.com/
                              Please, shop iboats first!!

                              Comment

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