In reply to Luke90:
The video is not a very good demo....
(
https://www.thebmc.co.uk/how-to-lower-off-from-a-sport-climb)
Because, the climbers actions do not match the voice over instructions. Seems a bit shoddy to me as it is authored by a bmc tech officer, and on bmc tv / from rock climbing essentials.
The cimber, on being able to reach the belay, has not attached a quickdraw, and clipped the rope to it, ike as if it was another runner.
But that's what the voice says to do.... Instead the climber omits this but clips a quickdraw, one end to one of the belay rings (there are 2, and they aren't attached to each other by a chain), and the other end of the quickdraw to her harness belay loop.
So at the point where the climber pulls up quite a lot of slack to push a bend through 2 bolt rings to tie a fig 8 and clip to her harness, at this point, she is only attached to one belay bolt (+ the gear below on route), and if that failed the climber would take a whipper, and the person belaying may be less attetive than they still should be, as they think climber is secured to belay bolt (but should be attached to 2 if not chain linked as in this example).
On these grounds, should bmc not remove a faulty safety demo video?
Personally i would 1st clip a quickdraw to the belay and clip the rope to it like its a runner (as per vid voiceover) and shout "take", then clip another quickdraw to 2nd bolt and this quickdraw to belay loop, then using the 1st quickdraw i would stay with the rope clipped in but also clip it to my harness belay loop too, then feel safe enough to ask for slack do the rest.
Post edited at 14:37