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Simpson Chains

To chain or not to chain (that is the question)

  • In favour of chains being fitted to Simpson/Swinsto for pull through

    Votes: 93 90.3%
  • Not in favour of chains being fitted to Simpson/Swinto for pull through

    Votes: 10 9.7%

  • Total voters
    103

hannahb

Well-known member
I'm pretty neutral on all this, but I do think an important question is whether "Slit Pot [...] being notorious for stuck ropes" (as the CNCC document says) is down to the anchoring or down to it being (presumably) the most visited large pull-through pitch in the country. The apparent absence of issues pulling down ropes on any other pitches is perhaps an indication that it is the latter?
I think for Slit Pot direct the trouble is the flake, rather than the anchors (I could be wrong). If you don't fit through the slit, your other options are the Slit Pot bypass, or the Great Aven route, and I think it's one of these is where tat has accumulated to make a Y-hang to make the pull through possible or better (again, could be wrong, trying to piece it together from what has been said here and the photos and the documents).
 

Steve Clark

Well-known member
From the posts on UKC, I think it's probably the top half of the split pitch in Swinsto that sees most stuck ropes. As noted above, it's awkward to see the bolts from the bottom of the pitch and you can't really go walking around to free them if you're on the ledge. In our case of a stuck rope, I'd put a knot in the end of the pitch rope because I'd not done it before and I was expecting to land on a small ledge I didn't want to risk abseiling off the end. This knot was then in the waterfall and not obvious when someone else pulled it down.
 

Samouse1

Well-known member
Having reread the thread and new responses, I’m now back onto the fence on this. If, as said, the chains won’t affect hard rigging the cave, that is one of my concerns answered. If there is a marked safety improvement that cannot be replicated by offset pull through bolts in this location, then the chains are certainly the best option.

Having one route set up this way rather than all three would still be my preferred option, but if the will of the people is that all three are bolted then so be it!

I’d like to also say that I appreciate the hard work put in by the bolters and volunteers at the CNCC!
 

CNCC

Well-known member
CNCC Secretary (Jill Bolton) here! I was responsible for preparing and uploading the Swinsto document, based on an email from Matt Ewles, our PR & Communications Officer.

Unfortunately, I made an error in omitting Matt's name as the proposer, and note this has been queried on the thread. So I apologise to Matt, Ian and anyone else who was concerned.

In my defence, I was rushing to get the document circulated on Friday evening, to give everyone a chance to consider it over the weekend.

Remember, you are invited to participate in the CNCC meeting, either in Clapham or via Zoom. Whilst it's strictly a committee meeting (so only the committee get to vote) we welcome contributions from all cavers.
 

andrewmcleod

Well-known member
This thread is an excellent demonstration of the loud minority, silent majority. The vote on this thread currently stands at 92.4% in favour. That's an *overwhelming* majority.

It's vitally important that all voices have a chance to be heard. Writing a post on this forum with a point of view is an important thing, but it should be remembered that you get one vote per person, not one vote per paragraph. It's important that people can speak freely so that they can convince other people to change their votes, but if they fail to do so we shouldn't give unfair consideration to that effort.

This thread also includes classic cases of cavers trying to reinvent the wheel. Chains and pull-throughs have already been done by climbers and canyoners far more than we ever will. The systems already exist and we should use (and potentially adapt) them, not pointlessly design things from the ground up.

As for the thing about putting chains on three routes on the same pothole, maybe I've missed it but I can't see where that came from? I'm assuming that's a miscommunication somewhere.

Personally I'd get rid of all the tat on the Slit Pot bypass and just put a plastic size gauge at the entrance to the cave. Don't fit? Go to Swinsto :p

PS on the very limited number of pull throughs I've done, I've just tied the ends of the rope together. Then you have an end knot but it doesn't matter if you forget to take it out. I vaguely remember there might be a reason not to do that but I can't remember what it is :)
 

hannahb

Well-known member
This thread is an excellent demonstration of the loud minority, silent majority.
You're right, but I'm happy to continue to be loud. I don't get a vote at the CNCC meetings because I'm not on the committee, and our club rep does not bring matters for discussion to the club, so I don't feel represented through that route. I will try to go to the meeting anyway, to gain as much understanding as I can.

In my opinion it's important for this proposal and decision to be as transparent as possible, and for statements to be backed up with evidence, and valid concerns to be properly addressed.
 
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langcliffe

Well-known member
I'm boringly neutral about putting in chains. I don't think they're needed, nor do I think that they will compensate for the use of poor practices, but I also don't think they will do any harm, and will provide good experience for those who encounter them in France where they are commonly used.
 

DaveyDubz

New member
Hi all

Please find below some information that may help in explaining the situation.

Background:
Simpsons and Swinsto were surprisingly never anchored with consideration for pull through trips.

The CNCC committee agreed for anchor work to be carried out to rectify this.

The “standard” 2 anchor slightly offset set up has been used in all locations except for the 3 options at the end of Simpsons.
Slit Pot, Slit Pot “over the top” bypass and the last part of the Great Aven.

Currently there is an array of anchors in place and “Tat” in various states.

These locations would be best suited (In my opinion) to chain linking 2 anchors to a single point (a free spinning welded ring)

Reasons for this approach.

Having a single point to pull down from with no rope rub on a pitch in the 30m range is highly desirable.

Whilst the wear and tear on the anchors from pulling down is negligible, science says it must be happening, so moving this wear away from the anchor can only be a good thing on such a big pitch and will ensure the anchors are still sound in 500 years 😱.

The chains are only attached by mallions to the anchors so this is absolutely NOT permanent and can be removed at any time.

This solution will remove the need for cavers to add and keep adding “Tat”. Something that really shouldn’t be needed on such a popular cave.

Nothing proposed here would affect “hard rigging”. The aim in both caves has been to provide “multi” purpose pitch heads using the minimum anchors.

Aiming for a sustainable, fit for purpose solution (dare I say best practice) would seem like a good aim for a representative body.

What to do if you disagree.

We are blessed that the CNCC operates in a fully open and transparent manner and follows their constituent.

This is in the “proposal” stage so nothing is decided.

• Feel free to make your feelings known on this internet forum. (Obviously this has no “official” purpose but any debate and discussion is generally healthy)
• Make representation via your club if it is part of the committee.
• Make representation via the recently appointed individual rep if needed.
• Turn up to the meeting and make your feelings known here.



If the committee decide not to pass this proposal which is absolutely their right, at least it would save me dragging some chain through the cave 😂. However we will still be left with the issue of Tat appearing in these locations or problems pulling down.

Some pictures below of the areas currently.

Ian

View attachment 20525View attachment 20521View attachment 20522View attachment 20523View attachment 20524
Going all the way back to the start of the thread, and the photos of the areas currently, I'd much rather see a reassuring chain and abseil ring than a load of tat rope hogging the bolts. Providing it doesn't interfere with those fixing rigging for exchange/in-out trips then it can only be an improvement.
Simpsons and Swinsto are both sport caves and modified already with bolts/blasting a few more bits of metal won't substantially change the nature of the cave (in my opinion).
The two anchor setup is good where it works, but for situations where it doesn't (which at least one of the above looks like) then I can understand the need for a chain.

I don't think any of these points are unique to me, and I agree with andrewmcleod's point above, everyone has a voice not just those who shout the loudest.
I enjoy rigging in Yorkshire as the bolting quality is usually pretty good and considerate, especially compared to other regions/caves I frequent (looking at you OFD2).
 

hannahb

Well-known member
Apologies, I definitely wasn't meaning to suggest that other people shouldn't have a voice, and I'm genuinely sorry if I came across that way. I don't think that at all, and I'm not intending to dominate the conversation or even really to persuade people who aren't fussed one way or the other. I would just like to see evidence for all the claims that are being made, and to have some queries or questions answered. I've read everything people have posted and I've thought about those posts, and if I've been dismissive I apologise again for that.
 

Loki

Well-known member
I’m sure this has been considered but for anyone not in the know - never put the chains where they will be hit by flood water or moved by a strong draft. The movement over many thousands of cycles will wear away the softer item til it falls off. I have seen this happen.
 

mikem

Well-known member
Just repeating Ian's original justification post as it's half way down the front page (there are links to the photos at bottom, or can see more easily on original):
Hi all

Please find below some information that may help in explaining the situation.

Background:
Simpsons and Swinsto were surprisingly never anchored with consideration for pull through trips.

The CNCC committee agreed for anchor work to be carried out to rectify this.

The “standard” 2 anchor slightly offset set up has been used in all locations except for the 3 options at the end of Simpsons.
Slit Pot, Slit Pot “over the top” bypass and the last part of the Great Aven.

Currently there is an array of anchors in place and “Tat” in various states.

These locations would be best suited (In my opinion) to chain linking 2 anchors to a single point (a free spinning welded ring)

Reasons for this approach.

Having a single point to pull down from with no rope rub on a pitch in the 30m range is highly desirable.

Whilst the wear and tear on the anchors from pulling down is negligible, science says it must be happening, so moving this wear away from the anchor can only be a good thing on such a big pitch and will ensure the anchors are still sound in 500 years 😱.

The chains are only attached by mallions to the anchors so this is absolutely NOT permanent and can be removed at any time.

This solution will remove the need for cavers to add and keep adding “Tat”. Something that really shouldn’t be needed on such a popular cave.

Nothing proposed here would affect “hard rigging”. The aim in both caves has been to provide “multi” purpose pitch heads using the minimum anchors.

Aiming for a sustainable, fit for purpose solution (dare I say best practice) would seem like a good aim for a representative body.

What to do if you disagree.

We are blessed that the CNCC operates in a fully open and transparent manner and follows their constituent.

This is in the “proposal” stage so nothing is decided.

• Feel free to make your feelings known on this internet forum. (Obviously this has no “official” purpose but any debate and discussion is generally healthy)
• Make representation via your club if it is part of the committee.
• Make representation via the recently appointed individual rep if needed.
• Turn up to the meeting and make your feelings known here.



If the committee decide not to pass this proposal which is absolutely their right, at least it would save me dragging some chain through the cave 😂. However we will still be left with the issue of Tat appearing in these locations or problems pulling down.

Some pictures below of the areas currently.

Ian

View attachment 20525View attachment 20521View attachment 20522View attachment 20523View attachment 20524
 

mikem

Well-known member
81 out of 87 now in favour, so numbers voting for each have doubled but percentage not really changed since 1/3rd of way through this discussion - would be interesting to know how many have actually commented, for comparison?
 

Steve Clark

Well-known member
These photos have just appeared on my Facebook feed. A post by DMM. Pretty convincing before / after shots of the tat tidy up at the top of the Old Man of Hoy. Titanium gear for the marine environment with what appears to be a cut plate ring rather than welded. More of an extreme tat mess, but it’s had to argue against this as a sustainable solution. I think I’m pro chains now, especially if it can be made this neat. There may be practical limits on bolt spacing in limestone. (Photos by Ray Wood I think)

IMG_1861.jpeg


IMG_1862.jpeg
 
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