I went for a swim at lunch time today – a gentle and sedate 2km to try and embed the new stroke elements I’m learning.
However, as we were getting into the pool there were about a dozen of us waiting for the lane ropes to be put in. Yet from all twelve of us I was the only one to use the showers before swimming.
That’s one in twelve!
Not only is it rule 4, but it’s basic hygiene and decency.
A quick shower and you’re removing the outside world and not carrying any potential muck into the pool. Not only that, but you’re also preparing your body for the water and making it easier to get in and swim.
So please, shower before you swim and keep the pool cleaner.
1000kmstowindermere 
I hope you didn’t sweat into the pool. Yuk!!
Of course people sweat Barry, but we can reduce the muck that goes into the pool with a shower.