I heard laymoor was polluted killing off most of its stock??? Something about chemicals being leaked into the brook that feeds into the pool. I did fish there a couple of years ago a few times, plenty of fish. As no one else fishes it now I believe the rumours must be true.
The grapes pool looks a nice pool but carp wise I don't know what the stocking has been like??? I've pleasure fished there and had tench and carp around 1lb. Maybe needs a few years to mature. Although I've seen a few bivvys over there.
Sheepwash lane is best avoided cars and tackle aint safe around that area.
I've never thought of fishing the canals for the carp, it's something I will have to look into along with the other pools you have mentioned.
Thanks.