Not to mention to the other comment, the guns these soldiers had weren't submachine guns and modern box magazine semi-auto rifles, 90% of those guys had type 99 or type 38 Arisakas.
5 round stripper clip fed rifles aren't much use when you're being terrorized by something lurking in the water....
That analogy seems more in line with the risk of gas leaks and explosions.
The subject here is more that in addition to that, every time you use the pool, you have to gobbel down a bit of posion water. But in addition to that, you depend on using that thing almost daily.
Yeah not sure, growing up we had a swampy area of our property covered in it, was really fun to run through as little kids and cut them down with stick swords. Our parents finally realised they needed to sell the property and eliminated them all over two years, not sure what the big issue is.
