More people get sick from pool water, even properly treated pool water, when on vacation. They usually chalk it up to something they ate.
This isn't correct either. There are far more cases of food (or drinking water borne) illness in travelers than recreational water borne.
Nope, chalk it up to that family that ignored the signs about only properly trained babies in the pool.
Chances are, the rinsing/diluting effect of the water will save you from any bug. But not the chlorine. Not nearly enough time for the dosage found in the pool. (assuming they use chlorine, in some environments other chemicals are used. Common in indoor pools or very hot pools such as hot tubs and the like)
Nope. Non-potty trained babies that aren't in swim diapers do pose a hazard to swimming pools. But a CDC study showed a range of 0.1 - 10 grams of fecal material remaining on adult back sides. (Average 0.14g) How's your "paper work"?
Again, at 1ppm or greater, the chlorine will kill most disease causing organisms. Dilution does play a role, but that also depends on the dose and infective dose needed.
Indoor pools still use chlorine. Bromine is another option, but require higher levels to maintain the same kill. Bromine is still an effective sanitizer.
You can take your health into your own hands. Go to a pool supply store, pick up some test strips and follow the label instructions. If there isn't any chlorine in the pool, then don't go swimming.
I will never set foot in a commercial hot tub. I know too much.
TwoBit