The Steel Brewing Co. As far as the piss in the pool water goes, maybe it's just me, but I tend to not drink the water while I'm out for a swim. Call it a personal hygene thing, I dunno...
I simply do not enter the pool. Only time I go into a pool, I've got enough alcohol seeping out through my pores to ward off just about anything.
If you soaked up external water through your skin to the tune of a liter then you would die of de-hydration from swimming in the ocean.