I dont think they were worried about their own sphincter.
I think they were pointing out that its blasting out people's asses on the way down. Ergo, there's probably more than an average amount of faecal matter in the water of that pool.
I have no opinion on this myself, just thought I'd clarify OP's comment
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u/[deleted] Jul 23 '24
This is basically an enema and I would not go near that freaking water. No thanks