It’s most probably jammed In the pulley on the far side again. From the knot off the boat to the main line. Will see if I can sort it at the weekendWe could see the half of the boat in the distance and it was above water. I'm not familiar with the mine so I can't say if it was floating or on a shallow bit. We pulled the only cord that crossed the pool quite hard but there was zero movement from the boat and the cord went round the corner and we could not see if it actually attached to the boat. If the cord was jammed in a pulley on the other side that would make sense (though I'm not sure I understand the setup in that case).
Basically how it’s been for the past few months it’s a one way system, as if you pull the rope the other way the knot gets jammed in the pulley.We are planning a trip this coming weekend. What do we need to fix it? A dinghy? Some polyprop?
I did it wearing a thick wetsuit prior to the boat was installed. It was slightly daunting jumping in from the abseil point.