So, Wales also seems no exception to the general practice of lane swimming. I think the "spa" approach as Werner called it might then be just a Scottish interpretation.
That alternating direction of rotation between the lanes sounds neat, though I've only noticed the problem of wake from the next lane when the club swimmers start to get up a head of steam or swim butterfly. I find the lane ropes catch most of it. I do find passing swimmers in my lane who are swimming in the opposite direction affects breathing to the left (in counter-clockwise rotation) but I've begun to be able to sense when the swimmer is coming and then I just breathe to the right for a stroke.
A psychological disorder is: "Any personal construction which is used repeatedly in spite of consistent invalidation."
~ George Kelly
"The water is your friend.....you don't have to fight with water, just share the same spirit as the water, and it will help you move."
~ Aleksandr Popov