Andy, if a person wants to know something, then they can browse in the relevant section, or they can ask a question relating to their question, giving a few details. The original poster has not given any details of the venue they want to fish, canals vary dramatically all over the country, dept(width,depth, bottom etc..)plus the original poster hasn't even suggested a bait, so it would be pointless suggesting a specific rig, as it may not be suitable for the venue.