Adjusting the master point height on a quad anchor
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Hi, I'm going on a sport multipitch trip soon and was practicing with my partners so we have our system dialed in. We expect to mostly use quads as anchors since all the anchors on the climb are bolted. As we were practicing I realized i don't know how to adjust the height of a quad if the master point ends up too low for comfort. As far as I see it, the options are: |
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Not really an answer to your question, but: |
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A J wrote:- suffer with a slightly lower than optimal master point |
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Alex you should be attached to both bolts...not just one. |
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Make sure your quad isn't tied too long. Bolt anchors tend to be relatively similar in the distance between bolts. If it's REALLY a problem then clove the legs of your quad to the carabiners to just eat up some slack. |
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you can always fold your "quad" one more time to make it six strands instead of four. I've done this if the bolts are close together. If your swapping leads using the rope is also infinitely adjustable and bomber. |
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if you're swinging leads between bolted anchors, the "Super 8" rope anchor is my preferred method: http://eveningsends.com/best-multi-pitch-climbing-knot-youve-never-heard/ |
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Just use the rope lol |
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Sounds like you have some good ideas. I second what beach said about using 6 strands instead of 4 (hex anchor?). |
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stolo wrote: Alex you should be attached to both bolts...not just one. Meh not really. The bolts should be linked, but there is nothing wrong with a clove into just one of the bolts to anchor you. People way overthink this, there is absolutely no need to be equalized into both pieces when they are good bolts that could take a 40 footer off of confidently. If the bolt is so questionable that it can't take body weight you've got other problems and should be setting up a rap, not belaying a follower. If there is hard sketch climbing right off the anchor climb up to get a first piece/first bolt of the next pitch clipped and come back down to the belay. However if you aren't sure of your ability to evaluate hardware accurately yet, by all means default to overkill. |
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Nick Drake wrote: Yes, I agree. People whip onto single bolts all the time without thinking even when the bolt's failure would result in a serious accident. But hang bodyweight on a single bolt and you're gonna die. Obviously if the bolt(s) are sketchy you should not just be on one, but this isn't the case often for me. |
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Nick Drake wrote: You should be physically tied into two separate points (both bolts) whenever possible (regardless of their linking) at all times to safely belay, imo. This is elementary redundancy that greatly reduces the chance of a significant oversight or single failure. |
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Why would you not use both bolts if they are there, that is dumb. Yea people whip on bolts, there is also another one not too far below. What if rock fall takes out your connection to one bolt? |
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stolo wrote: Why would you not use both bolts if they are there, that is dumb. Yea people whip on bolts, there is also another one not too far below. What if rock fall takes out your connection to one bolt? You are connected to both bolts, they are not equalized. Take rope coming from waist and clove to one bolt. hang on bolt. Take the running side of rope, with some slack, and clove to other bolt. Now take the slack between the bolts and tie an overhand and use as masterpoint. You are still into both bolts, but not equally, in fact you are only weighting one of the bolts. |
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Buck Rio wrote: I interpreted the example earlier as using a quickdraw to attach to one bolt and use two more quickdraws for the belay. Yes, I agree with using the rope as you describe and recommended to op, works great and a rope is more durable than a sling. |
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Think about this one a bit. |
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Clove hitch into one bolt, pull a little slack up, clove hitch into the 2nd bolt. Clip your Grigri onto the same biner as the 2nd clove. Belay up. |
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Thanks everyone for your responses. We will mostly not be swinging leads which is why we aren’t using the rope to anchor. I like the tripled up (6 stranded) quad idea. tradvlad wrote: Another option would be to construct an offset quad, where one shelf sits higher then the other shelf. I am not sure what you mean by offset quad, could you expand on this? Thanks. |
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stolo wrote: Why would you not use both bolts if they are there, that is dumb. Yea people whip on bolts, there is also another one not too far below. What if rock fall takes out your connection to one bolt? This is just getting crazy. 1) I read accident reports consistently and I have never once read a report of rock taking out a connection to a bolt because that the type of one in a million chance that, if you are climbing at all, you kinda just have to accept, particularly because any rock fall large enough to take out a bolt is probably going to hit you and you're going to die anyway. You mitigate all reasonable risks, and the risks that are just insanely small, you have to accept. 2) Keep yourself in the system (use the rope for the anchor or clove directly into the same biner your anchor is in) even if the bolt rips out, you are still connected to the other bolt. Connecting to both bolts separately creates a cluster fuck of ropes, biners etc at the anchor. THAT is the type of thing that gets people killed. Connecting to one bolt, keeping a closed system, and trusting that something that can take a giant whipper can take bodyweight keeps your systems neat, organized and simple, reducing the chances of errors. |
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Buck Rio wrote: Bingo, beat me to it. |
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stolo wrote: Alex you should be attached to both bolts...not just one. I did this on the 1900ft bolted route Squawstruck in Utah. Worked great. Easy, light, fast. Two lockers (locker - non locker; two non - lockers) is your belay station. |





