Fishing has been really hard on all canals for almost two months now. Fish have been getting ready to spawn and temperatures have been all over the place.
People are unwiling to talk about good places on forums because every Tom, Dick and Harry will be there the next day. All 'hot spots' are hot for a short time as predators respond very much quicker to being caught than carp, bream or roach.
Sometimes the best way of catching is to to avoid the obvious spots.
How about coming along to one of the 'Friendly Fish ins'? Lots information and techniques to be found there .....
Don't give up!
In terms of technique to maximise catching anything I find drop shotting with a small hook (10/12/14s) and small lure. (Fox Fry or Tiddlers and the like work well). Use an appropiate weight for the rod you are using (2-5g) and place the hook about 8 inches above the weight. There are loads of DS videos on You Tube to give you an idea as to the technique. Once you start catching tweek the method until you find a way to catch more. I've had pike, zander, chub, carp, ruffe, bream, hybrids, roach, rudd and thousands of perch doing this.
It might not catch you the biggest fish in the water but it will catch something.
Once we get into the Summer fish will be more prepared to take jigged lures.