Mooring tackle expert needed

[lw395]

..... Yes the swivel will last really well. However any iron (mild steel) that contacts the stainless steel will disappear really rapidly. I would guess at about 10x normal wear rate. So use either iorn through out or stainless steel through out not half and half.
I have an all stainless steel mooring tackle. The chain is huge and comes from the inside of a rotating lime kiln. About 12mm link dia. Very big circular links. Anyway being the nanny state I had to have my mooring inspected (every 2 years) by an approved proffessional. He fitted a new shackle in this chain.
It was around 18mm pin diameter. Huge for a tiny boat. Within a year this shackle was badly worn......

I agree about mixing metal in the water.
I have had good results using plain steel chain, with a galv swivel on the buoy.
Sometimes bolt an old anode to the swivel, can't really prove it helps, but saves it cluttering the shed!
I use a stainless swivel in the strop, above the buoy, in the rain not the sea.
It's isolated from the galv loop on top the buoy by plastic hose. Seems to work.

 

[GrahamM376]

I don't have a mooring buoy with accompanying barnacles for my mooring strop to wrap itself around.

I can't help think that people that put a negative inflexion upon everything despite not knowing all the details probably lack confidence in themselves or do not have much real practical experience themselves to draw upon. I'm sure those people must be a joy to sail with

Is it negative to point out possible problems? I've been on moorings for 20+ years and have seen many failures, often due to undersized and unsuitable fittings and of course lack of inspection/servicing. My 19mm long link chain between the riser and 2.5 ton (dry weight) concrete block is the shock absorber so I don't need any stretchy lines. Nylon loses strength when submerged and the "sharp little critters" you ask about are mussels which I always find attached to the riser, I wouldn't want these rubbing against an adjacent line. I don't get barnacles on the underside of the soft buoy so that's not a problem for the strops.

 

[Seajet]

I don't have a mooring buoy with accompanying barnacles for my mooring strop to wrap itself around.

I can't help think that people that put a negative inflexion upon everything despite not knowing all the details probably lack confidence in themselves or do not have much real practical experience themselves to draw upon. I'm sure those people must be a joy to sail with

You asked, don't blame me if you don't like the answer.

I answered using the details you gave and do not put a negative inflexion on everything, just your mooring set-up.

I have worked on my mooring and those of other club moorings since 1978, seen the faults mentioned and wrecks resulting; up to others to say if I'm ' fun to sail with ' but people on my mooring at least know I don't ignore advice and talk myself into using old swivels that don't ( swivel ) and long doubled up rope strops for the sake of a few quid and a little bit of effort.

 

[Nicholas123]

You asked, don't blame me if you don't like the answer.

I answered using the details you gave and do not put a negative inflexion on everything, just your mooring set-up.

I have worked on my mooring and those of other club moorings since 1978, seen the faults mentioned and wrecks resulting; up to others to say if I'm ' fun to sail with ' but people on my mooring at least know I don't ignore advice and talk myself into using old swivels that don't ( swivel ) and long doubled up rope strops for the sake of a few quid and a little bit of effort.

That's simply not true seajet. I asked about a specific piece of equipment.

Using the link I provided you can see my boat & the mooring & at no time have I been talking about a deep water mooring. There have been alsorts of dire 'assessments' which are frankly insulting based purely on speculation.

Incidentally we are not talking about "old swivels that don't (swivel)" that is yet more scaremongering nonsense. I am enough of an engineer to be able to asses the situation for myself regarding my own mooring I just asked about specialized knowledge about one piece of kit. I did not get all the answers I would have liked but did get enough info to put my mind at ease. :encouragement:

 

[Boo2]

...It's all personal choice, but I'd never have a doubled strop, never a rope only strop,...

Does this mean you would always use a single chain mooring strop, Seajet ?

Boo2

 

[Seajet]

That's simply not true seajet. I asked about a specific piece of equipment.

Using the link I provided you can see my boat & the mooring & at no time have I been talking about a deep water mooring. There have been alsorts of dire 'assessments' which are frankly insulting based purely on speculation.

Incidentally we are not talking about "old swivels that don't (swivel)" that is yet more scaremongering nonsense. I am enough of an engineer to be able to asses the situation for myself regarding my own mooring I just asked about specialized knowledge about one piece of kit. I did not get all the answers I would have liked but did get enough info to put my mind at ease. :encouragement:

Nicholas123,

you said the swivel didn't rotate, so hardly scaremongering nonsense from me or anyone else - and I never said you have a deep water mooring, it's irrelevant here.

The ' dire assesssments ' are people offering educated advice, but I and everyone else was apparently just meant to say ' that's wonderful '.

Boo2,

yes I do use a single chain strop.

Have seen a lot of strops with ' backups ' twist together, especially if the boat isn't used for a while; this can have a nasty tensioning ' Spanish Windlass ' effect winding the boat tight to the mooring and possibly even lifting the sinker a bit on spring tides...

I don't believe a nylon strop is usually long enough to use the elastic shock absorbing effect of the material.

Chafe is no. 1 problem with rope strops,

but also if unlucky it can be cut or untied by yobs - it is not unknown for this to happen at various places - as a precaution I padlock my mooring.

Swivel failure has been the cause of most boats adrift I have seen.

On my half tide mooring I replace my topchain & swivel every 2-3 years ( swivels annually if looking at all corroded or stiff ), the club replaces the heavy ' destroyer ' bottom chain about 5-10 years, deep in the mud it doesn't get the oxygen to corrode much.

 

[Nicholas123]

Nicholas123,

you said the swivel didn't rotate, so hardly scaremongering nonsense from me or anyone else - and I never said you have a deep water mooring, it's irrelevant here.

The ' dire assesssments ' are people offering educated advice, but I and everyone else was apparently just meant to say ' that's wonderful '.

Boo2,

yes I do use a single chain strop.

Have seen a lot of strops with ' backups ' twist together, especially if the boat isn't used for a while; this can have a nasty tensioning ' Spanish Windlass ' effect winding the boat tight to the mooring and possibly even lifting the sinker a bit on spring tides...

I don't believe a nylon strop is usually long enough to use the elastic shock absorbing effect of the material.

Chafe is no. 1 problem with rope strops,

but also if unlucky it can be cut or untied by yobs - it is not unknown for this to happen at various places - as a precaution I padlock my mooring.

Swivel failure has been the cause of most boats adrift I have seen.

On my half tide mooring I replace my topchain & swivel every 2-3 years ( swivels annually if looking at all corroded or stiff ), the club replaces the heavy ' destroyer ' bottom chain about 5-10 years, deep in the mud it doesn't get the oxygen to corrode much.

That's a lie I have never said any such thing,but of coarse if you can point to where I have said that on this thread then you might be able to give credence to your endless irrelevant drivel.

 

[Seajet]

I was going by your post #8 ' the swivel didn't rotate ' - but misunderstood as it seems you used the wrong term, think you meant to say mooring didn't swing ?

Anyway all my advice and comments are straightforward and based on experience; if you just wanted a pat on the head and be told your poor set-up is wonderful it would have saved me and others from bothering with you.

As you are becoming increasingly insulting I will just put you on ' ignore ' and you can feel free to get stuffed- or go adrift, whichever happens first.

 

[Nicholas123]

I was going by your post #8 ' the swivel didn't rotate ' - but misunderstood as it seems you used the wrong term, think you meant to say mooring didn't swing ?

Anyway all my advice and comments are straightforward and based on experience; if you just wanted a pat on the head and be told your poor set-up is wonderful it would have saved me and others from bothering with you.

As you are becoming increasingly insulting I will just put you on ' ignore ' and you can feel free to get stuffed- or go adrift, whichever happens first.

What I said in post number 8 is perfectly accurate. I think I'd rather not be drawn into your Walter Mitty world so by all means put me on ignore.