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Old 29-07-2020, 19:47   #46
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Re: Rocna or Manson Supreme? (OP Ducks His Head)

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Interesting to note - roll bars seem to me a way to get an anchor to dig in where the design is not quite right. Anchors like Spade and Excel seem to have no problem flipping over when they need to, and digging in without a roll bar, and as per my earlier post, that roll bar has to have some effect being dragged down into the substrate, and now you comment on the fouling potential of it too.

In any case the theory and reality need to be married for the correct conclusions. And so watch Panope’s videos on anchors setting or Noelex’s pictures of anchors setting. Based on theory you would think all rollbar anchors act the same and that an Excel would set like a delta. And reality is that the Excel is a great anchor, and in some testing Mantus outperforms other rollbar anchors (probably due to larger rollbar which doesn’t clog as much)
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Old 29-07-2020, 21:16   #47
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Re: Rocna or Manson Supreme? (OP Ducks His Head)

Don't forget about Mantus anchors. We got a Mantus M2 and while we only have a dozen nights of anchoring on it I can already tell its going to be a great anchor. That thing hits the bottom and bang - its in.

We have many years of anchoring on our Spade anchor on our old boat and I while I still think thats a great anchor, it doesn't seem to dig in as fast.
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Old 29-07-2020, 21:22   #48
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Re: Rocna or Manson Supreme? (OP Ducks His Head)

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While the roll bar anchors hold great, I didn’t enjoy the cleaning exercise after anchoring in sticky bottoms like Maine.

.
Non issue if you have a decent deck wash and hose.
We just have a 22lpm Johnson and a cheap garden hose and nozzle, has a 150lb Manson Supreme anchor clean in minutes.
The 50m of muddy chain now that is a PITA.
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Old 29-07-2020, 22:04   #49
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Re: Rocna or Manson Supreme? (OP Ducks His Head)

I'm very please with my Manson Supreme. In six months of cruising it set every time and never dragged. It was significantly cheaper than the equivalent Rocna which made the choice easy. The Manson has an interesting feature where there are two slots to attach your shackle. One is the normal slot at the end of the shank and the other is an elongated one for foul ground that reduces the chance of your anchor being fouled.
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Old 30-07-2020, 05:32   #50
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Re: Rocna or Manson Supreme? (OP Ducks His Head)

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Non issue if you have a decent deck wash and hose.
We just have a 22lpm Johnson and a cheap garden hose and nozzle, has a 150lb Manson Supreme anchor clean in minutes.
The 50m of muddy chain now that is a PITA.

Agreed. Mud isn't a big deal with a good washdown. The setup I put in last winter is good for somewhere around 60 - 70 psi at the nozzle and 4.5 gpm or just over (at that pressure). I just keep it pointed at the roller as the chain comes up and that takes care of most of the mud (occasionally I'll pause to knock a chunk off). Anchor rinses clean fairly easily too. And anchoring in deeper water helps, as more of the mud comes off before reaching the surface.
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Old 30-07-2020, 07:42   #51
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Re: Rocna or Manson Supreme? (OP Ducks His Head)

You know what goes through my mind when I pull up my Manson Supreme and it has a big ball of mud in it????

I think "that's good, that anchor was well set".

If mud in your anchor is a big problem to deal with in your boating time ............... just wait for the rude awakening for what is to come.
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Old 30-07-2020, 08:22   #52
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Re: Rocna or Manson Supreme? (OP Ducks His Head)

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You know what goes through my mind when I pull up my Manson Supreme and it has a big ball of mud in it????

I think "that's good, that anchor was well set".

If mud in your anchor is a big problem to deal with in your boating time ............... just wait for the rude awakening for what is to come.
Ha ha ha! Isn’t that the truth?

I actually secretly like washing the glob of mud off my Manson Supreme. It’s fun to erode the base of the glob where it touches the metal only, then have the whole thing fall off with one big splash.

I’ve had so many great experiences with the Manson Supreme, it’s a little frightening to move to the Rocna. They are, however, so similar that I’d imagine they work the same.
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Old 30-07-2020, 10:36   #53
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Re: Rocna or Manson Supreme? (OP Ducks His Head)

By the way you don’t need a deck wash. I haven’t used mine in years. Just shake chain with boat hook as it comes up and mud falls off. Then when anchor is just below surface grab rollbar with boat hook and shake anchor a few times. Always works with Chesapeake mud which is among the more tenacious types
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Old 30-07-2020, 10:44   #54
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Re: Rocna or Manson Supreme? (OP Ducks His Head)

I've used both in the northern Chesapeake and both plow in the silt and soft muck. South of the Bay Bridge is fine and never a problem with either. Mud in chain? Get rid of the chain in the bay.
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Old 30-07-2020, 13:13   #55
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Re: Rocna or Manson Supreme? (OP Ducks His Head)

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By the way you don’t need a deck wash. I haven’t used mine in years. Just shake chain with boat hook as it comes up and mud falls off. Then when anchor is just below surface grab rollbar with boat hook and shake anchor a few times. Always works with Chesapeake mud which is among the more tenacious types
You must have light chain and anchor
You won't be doing it with 13mm chain with 150lb + of anchor hanging from it.
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Old 30-07-2020, 13:15   #56
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Re: Rocna or Manson Supreme? (OP Ducks His Head)

Even with lighter chain, good luck shaking it around enough in deep water with a fast windlass. And I've played the anchor dunking game. One day of 5 minutes of that and going backwards in circles before saying "screw it, I'll get the rest of the mud off later" was enough for me to put in a washdown.
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Old 30-07-2020, 13:22   #57
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Re: Rocna or Manson Supreme? (OP Ducks His Head)

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Originally Posted by Simi 60 View Post
Non issue if you have a decent deck wash and hose.
We just have a 22lpm Johnson and a cheap garden hose and nozzle, has a 150lb Manson Supreme anchor clean in minutes.
The 50m of muddy chain now that is a PITA.
True. But that does NOT help if the anchor is clogged with enough mud to change the balance so that it does not reset. This has been documented with a number of roll bar anchors. Not common, but a defined problem in sticky mud areas. This is why it is important that an anchor come up clean. Not because you can't clean it, but because that mud may inhibit reset behavior.

A roll bar can also get sticks caught in it. Same problem. I've had that happen many times.
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Old 30-07-2020, 13:29   #58
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Re: Rocna or Manson Supreme? (OP Ducks His Head)

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Even with lighter chain, good luck shaking it around enough in deep water with a fast windlass. And I've played the anchor dunking game. One day of 5 minutes of that and going backwards in circles before saying "screw it, I'll get the rest of the mud off later" was enough for me to put in a washdown.
Simpler yet, shorten up scope to where the chain is off the bottom. Let the boat rock for a few minutes. That will take off most or all of the mud. At worst I might run the last 12 feet up and down once. Easier than washing. As for the mud on the anchor, if I sailed hard enough it generally washed clean. If not, I kept a long handled scraper that would knock off the important stuff in 2-3 strokes. The rest came off when I anchored the next day.

My Excel comes up clean. Everytime.
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Old 30-07-2020, 14:06   #59
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Re: Rocna or Manson Supreme? (OP Ducks His Head)

I think most here know this, but worth saying: anchoring off many towns and cities the mud that comes up will contain sewage that has not oxidized (decayed). A little bit in the chain locker will create a stench in a day or two as it decays in the presence of oxygen. Sewage treatment plants are relatively new, and often don't pick up all of the old sewer lines that run out into the bay. The worst experience I had was from a small island town in the PNW, which had me pulling out all 300' of chain and stretching it out on the dock in a pouring rain to clean it, as well as the anchor locker itself. I simply couldn't stand the stink any longer (3 days after anchoring). A washdown pump is a necessity in some places.

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Old 30-07-2020, 16:02   #60
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Re: Rocna or Manson Supreme? (OP Ducks His Head)

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You must have light chain and anchor

You won't be doing it with 13mm chain with 150lb + of anchor hanging from it.


Sure- 55 lb mantus and 5/16 Ht chain. My technique wouldnt work with your behemoth [emoji3].
And a lewmar windlass so decently fast. But I find I pause less often than I did with the deckwash.

Anyway, I am sure sometime I’ll encounter mud that requires my deckwash and I’ll hook up the hose, etc. its there. Its easy to start using for certain. And maybe I have special technique no one else can learn, but I watch everyone else struggle with deckwashes and take twice as long to stow their anchor gear clean
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