Bizarre pool lanes?
I am looking for confirmation I am not going mad. I always swim in the same lane in my local leisure centre 30m pool. Following the circulation directions I swim up one side of the lane and down the other side. BUT, it always takes me more strokes to swim down one side than up the other (28 vs 34)...how is this possible? Do swimming pools have currents? I know there's some sort of filter mechanism in pools that pumps the water around, but surely it shouldn't have such a big impact? Anyway, apologies for sounding like a loon, but this has been bugging me for weeks now!! Any thoughts?