this post was submitted on 28 Dec 2024
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Definitely use a long snorkel tube (garden hose) to keep breathing! Good luck and don’t you dare post the follow up here because that task is actually awesome 👌🏽
Edit: the garden hose must not be more than 5cm long.
Do NOT do this if the pool is more than a couple feet deep. There is a good reason snorkels are short.
And that reason is?
The carbon dioxide won’t leave the hose before you suck it back in expecting oxygen.
I imagine you could get a super long snorkel as long as you had a different intake and outtake valve? Suck air in, blow out into water? Maybe there's a limit on that as well, but longer to some extent?
But with CO2 you'll know. It just won't work and you'll have to come up.
There's two. One, the average breath size is only so much volume. You take that first breath, you get air with oxygen in it. Breathe it out, and a short snorkel expels it into the surrounding air, letting fresh air take its place. A long snorkel has enough volume to partially trap your exhale, with less and less oxygen available with each breath. Two, pressure differences. The deeper you go, the more pressure the water exerts on your body. Not just your lungs, but your sinuses and other tissues have to deal with that pressure while breathing. The forces need to be balanced. Surface air doesn't cut it beyond relatively shallow depths.
this doesn't work, your lungs aren't strong enough to utilize a snorkel much longer than a normal one.
edit: wait what, 5cm? most snorkels are about 30cm, no?
… 5cm? So shorter than a finger?