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Quicksand submergence posssible?
Posted: Tue Nov 29, 2016 10:59 am
by SunGirl
Yes, I know the title is a bit misleading, I couldn't think of a better one.
Could it be possible to have like a "weight belt" that would give you extra weight so you could sink all the way under in quicksand?
If anyone knows how much approximately weight would be needed that would be helpful too.
And before anyone asks, I do want to sink all the way under.
Re: Quicksand submergence posssible?
Posted: Tue Nov 29, 2016 11:49 am
by bogbud
The more watery the stuff is, the deeper you sink, but the thick and sticky mud, peat and clay we all like so much is much harder to sink into because it is much more dense than your own body (thats only one of the reasons).
Going completely under in stuff that is some more dense than muddy water requires that you force yourself deeper in (pumping your legs, using your arms, grabbing some log or plant beneath the surface; in other words quite the opposite a survival guide would recommend

). Using some kind of weight belt could be a possible means of forcing you down. But you have to lift it up, too and that is much more difficult than going down. Also it hinders your movement and adds to the amount of mud that has to be pushed away. I wouldn't do that!
Re: Quicksand submergence posssible?
Posted: Tue Nov 29, 2016 12:24 pm
by Duncan Edwards
There's a lot of variables that go into it but I'd probably avoid any added weight myself. Especially if it was attached and I couldn't just drop it easily. You might have more trouble getting out than you want. I believe Fred, an experienced SCUBA diver, actually did some weight belt experiments years ago.
It all depends on how much effort you want to put in to sinking, the density of the stuff you're in, your personal build, etc. This is all based on the assumption that you want to get back out. We've had more than a few people here who wanted to get out and couldn't so keep that in mind. I saw a very fit and experienced fetish model that couldn't get under in the same spot that a very petite and relative newbie had no problem with. I always said that Kristine Lynn could submerge in the parking lot at Wal-Mart. Play with the location first before you start adding weight and then don't do it.
Re: Quicksand submergence posssible?
Posted: Tue Nov 29, 2016 1:21 pm
by beachbum
I agree. I would be real careful with the weight belt since you never know how thick the mud might be that day. I went out with my ex-gf before and she wanted to wear her sneakers (don't know why), and ever her sneakers weighed her down, and she could not have gotten out without me. Anyways, hope your in a nice warm area with good mud!
Re: Quicksand submergence posssible?
Posted: Tue Nov 29, 2016 1:42 pm
by Fred588
Damn. I just composed a submitted a lengthy and detail reply describing the physics involved and it vanished into nana land when I hit submit. This is the second time that has happened.
I'll get around to trying again eventually.
Re: Quicksand submergence posssible?
Posted: Tue Nov 29, 2016 2:07 pm
by Fred588
Here is the first part of the reponse to this thread I composed earlier only to have it vanish. I will submit this in parts.
Duncan is correct that I did some experiments awhile back. I will report here what I found out and also provide an example computation.
First, yes you can use a SCUBA diver's quick-release weight belt for this, provided you know how to use it correctly. You may, however, find it somewhat painful in mud.
A typical person in good health has a specific gravity of about .98. This means, for example, that such a person who weights 100 pounds will displace 100 pounds of pure water when fully immersed. The same person will have 2 pounds of buoyancy at that point and will become neutrally buoyant with about 2 pounds of added weight. [I say about 2 pounds because the weights themselves will displace some water and provide some additional buoyancy.]
The above is in pure water. The specific gravity of mud will vary according to what is in in but a figure of 1.2 is probably typical.. The above-described person will have enough body volume to displace, at the same point he or she floated in water, 120 pounds of mud. If fully immersed that person would have 22 pounds of buoyancy and would, therfore, need 22 pounds (plus a little) to be neutrally buoyant. That is a substantial difference.
If one could REDUCE the specfic gravity of the 'mud' then one might be able to actually sink without any added weight. One would have, in effect, the Hollywood version of quicksand. It is possible to do that using granulated cork or various kinds of granulated plastic foam. However, in most cases the result is too LOW a specific gravity, so one would sink immediately. One could get a liquid with a specific gravity just slightly lower than water by using some form of oil but that introduces all sorts of drawbacks, such as toxicity, flamability, degradability, or extreme expense. Olive oil?
I know of no material that is really suitable for what I believe is wanted here without the above-mentioned drawbacks. If anyone finds something let me know.
Re: Quicksand submergence posssible?
Posted: Tue Nov 29, 2016 5:30 pm
by gamwam
i find peat very easy to submerge under as it expands as it soaks up water which reduces its density,.. i have sunk vertically below the surfact in a peat bog so far that i could only just break the surface with my fingers when i stretched up,.(some of you may remember my old videos) i used a hose to breathe through - i could have gone deeper, out of reach of the surface but the pressure at that depth was restricting my chest which meant i couldn't expand my rib cage very much to suck in enough air through the tube - ive also managed to successfully dive into a peat bog head first and completely submerge (yes it is possible if the peat is wet enough) 0i have sunk in many different kinds of mud, i have gotten under quicksand before by lieing down on my back and raising my legs above my head to force the top half of my body under
clay and quarry silt are a similar storey,..i have managed to get under vertically in both, weighted and non weighted,. but i wasn't able to use a breathing tube at all because clay and silt are so much denser than peat and heavier so i couldn't raise my chest to suck air down a hose
this may gross some of you out but i have also sunk in manure which was very similar to sinking in a peat bog except with a more "doughy" concistency,. and other than a peat bog manure was the only substance that i have ever managed to sink below the surface in and use a hose to breathe through
as for total submersion in quicksand,. i tried many times with a backpack filled with increasing amounts of weights,. although it did work in sinking me deeper, i never got much below nipple level as the straps on the backpack were causing to much pain on my shoulders with the amount of weight i was using - also i found that the deeper i went the thicker the bottom became until a point when i literally felt my feet going numb - i tried several times in different thicknesses of quicksand in different areas but i was never successful,. except for head first and even then most of my body was sticking out of the qs
i am sure it is possible to submerge in qs but it would need more weight than a persons body could comfortably bear perhaps? - also i noticed that it is very hard to find quicksand that is deep enough to do this,. ive been sinking for years and ive only found quicksand deeper than my belly in 2 places
Re: Quicksand submergence posssible?
Posted: Tue Nov 29, 2016 8:45 pm
by Mynock
Is it Possible? Yes.
Can be a thrilling/terrifying/fucking awesome experience? Yes.
Is it a good idea, ESPECIALLY if you're new to sinking, and don't have a lot of experience with extracting yourself? No.
This can go very, very bad, very, VERY fast (like in seconds), and make you very, very dead. Fair warning.
Re: Quicksand submergence posssible?
Posted: Wed Nov 30, 2016 12:07 pm
by SunGirl
How can it go bad in SECONDS? wouldn't I have at least SOME time to grab rope or something before i go under
Re: Quicksand submergence posssible?
Posted: Wed Nov 30, 2016 12:12 pm
by Fred588
Just one illustrative example. Depending on the substanc, people here have been known to get stuck to the point they would never get out without assistance.
SunGirl wrote:How can it go bad in SECONDS? wouldn't I have at least SOME time to grab rope or something before i go under