This is just a guess but has the water temp dropped a bit, the nights have been cooler, it doesn't take much to put them off for a day or two while they acclimatize.Interesting how a number of us had a poor day, air pressure, recent long awaited rain?
It's funny,I accept bad days,because it's fishing not catching,what I'm finding difficult is the number of blanks(or very near ones),where fish dont seem to be anywhere near my swim,yesterday the swim I fished was reed lined,with a tree overhanging to the right(with a shaded arch),7ft deep close in,dropping to 12ft and remaining flat at 12yds,I started on 0.14mm hooklength and a 16 hook(hoping for bream and tench),but changing down to 0.12mm and a 20 looking for a bite,the,amount of days ive caught roach,perch,gudgeon etc on 12/14's when fishing for bigger fish,so much so they were a nuisance,seven days fishing,with three blanks,three days with single fish is very poor,on most baits....
BM had a habit one time of saying waters were stocked with a good head of fis, and in fact there were no fish in them.I have a feeling that won't happen John for two reasons ; 1. I suspect that the fish are not there in the numbers claimed and 2. I doubt I will be going back.
I was going to fish a match on there a couple of years ago with a British Legion club I guest wwith sometimes,word was going around then about low stock, so a different venue was booked.It was a Crewe Pioneers water before BM took it over a couple of years ago. It wouldnt surprise me in the slightest if they haven't a clue and simply rely on a few carp seen cruising and anecdotes. When they do restock it with say 2,000 fish how does one really know if it was 2,000 or 200 without being present or seeing the invoice. Another of their waters is now a PAAS water and the jury is out on that one too.
I am sceptical sometimes and do know of waters with no silver fish but which have been allegedly restocked when I know they have not. I may be being grossly unfair on the water in question and it certainly deserves another chance but not yet not yet.
I can't speak for the particular lines you were using but quite a lot of line will break away from the knot. Some lines are almost guaranteed to. Sensor 4lb doesn't, it invariably breaks at the knot but there's no guarantee that the 10lb will behave the same.