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A 500 gallon septic tank for a cache or small underground shelter.

Correction I bought numerous items and misquoted the cost of the tank. It was 5. The 0 tank is the 300 gallon size. Sorry I think I need to go back to my thinking chair. A 500 gallon septic can be installed to use as a cache or a shelter. Other sizes 1000 and 1500 gallon could be used also. If you are developing your property but it will be some time before you start building put a septic tank in and store survival supplies in case you have to bug out to the property. Make sure you place heavy items in the tank so it doesnt work its way up to the surface. Yes they can pop up with a heavy rain if they have nothing in them.A 500 gallon septic can be installed to use as a cache or a shelter. Other sizes 1000 and 1500 gallon could be used also. If you are developing your property but it will be some time before you start building put a septic tank in and store survival supplies in case you have to bug out to the property. Make sure you place heavy items in the tank so it doesnt work its way up to the surface. Yes they can pop up with a heavy rain if they have nothing in them.

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Wednesday, July 11th, 2012 2012 Survival

26 Comments to A 500 gallon septic tank for a cache or small underground shelter.

kevinevjen
June 20, 2012

Sorry,
I am a moron. Just thinking out loud.

Echo4PapaBravo
June 20, 2012

Heh, no way, bro. Thoughts like these are how we come about thinking up solutions. If no one ever said, hey I want to tie a key to a kite and fly it in a storm to see if I can harness the power of electricity, then we probably wouldn’t be watching vids like this on this handy electronic device.

abmdln11
June 20, 2012

SP1, great idea for a cache. HOWEVER, anyone attempting to use this as a shelter needs to research this throughly, this would be a confined space where carbon dioxide can build without you realizing it. Carbon dioxide is heavier than air and can build up even with the top off.

missouriprepper
June 20, 2012

I’ve seen septic tanks installed that weren’t filled with water right away, They got a real heavy rain storm and the hole even though it was backfilled, filled up with water and the tank floated right out of the ground.

kevinevjen
June 21, 2012

When I mentioned cutting a hole in the side of a septic tank and installing it on a side hill, I was talking about a precast cement one and using it as a root cellar or cache. I would definitely have a steel frame and a door made to support the loss of cement that I would remove to make the door. Very good idea about another use for a septic tank whether it would be plastic or cement.

Echo4PapaBravo
June 21, 2012

I’m no structural engineer so I wasn’t telling you that you were wrong, I was just seeing if you knew whether or not it would still be structurally sound if you remove a large section. But your steel reinforced door frame idea, especially if you used angle iron, would probably easily make it strong enough. Sorry if it came across as shitting on your idea, wasn’t meant that way.

buckstarchaser
June 21, 2012

This has the added benefit of allowing you to talk about your shelter and as long as you tell them you will be taking refuge in your septic tank, you won’t ever have that annoying reply “I’m coming to your house if something happens”.

jeremywendelin
June 21, 2012

There should have been a sticker on it that said “do not enter poisonous gas” I guess the plastic emits a toxic gas. Great idea tho.

P226nut
June 21, 2012

that wouldn’t happen so much on the east coast there soil is different here in mo we have a lot of clay and rocks that hold water they don’t, but I know what your talking about I saw a concrete swiming pool do that in oklahoma.

ActontheActor
June 21, 2012

NFPA stickers on Amazon. Chlorine is very common.

bushmaster102
June 21, 2012

I think it should be a septic tank first… Then if things get REALLY bad you could use it as a shelter. But things would have to get REALLY REALLY bad.

PrepperPaul
June 23, 2012

Good info, im a single guy, and i would use this as a short term underground bunker Even long term, you could keep going back to it and refilling it with supplies. A cammed up air intake and outlet would be easy to achieve, food, water, warmth in abundance in the shelter.

jcb570
June 23, 2012

i like it.thank u

burnstagger
June 23, 2012

Oh man that is awesome. Don’t forget the NBC filtration.

jwalker477
June 23, 2012

3:04 little Freudian slip there…

SciotoBuckeye7
June 24, 2012

Have been pondering this. If I were to set something like this up on a retreat owners property, I think it would be wise to run a few buried circuits back to the owners residence. One could monitor for moisture, and security of the lid/hatch. Those circuits could later be used for field phones. Simple two zone dialer would allow for remote monitoring so long as the land lines are working. Just a thought…

dustin74669
June 24, 2012

What would you think about shipping containers for bunkers?

Mysticfox2010
June 24, 2012

If you do convert your cache back to a working septic tank, be sure to remove your prep items first. If you forget, you may not want to retrieve them after a few days.

thriftstore prepper
June 26, 2012

awesome idea ! now thats planing on a budget.

sloth6785
June 27, 2012

if you wanted to sleep in one wouldn’t you need to get air flow some how? This is an awesome Idea. I’d want to make it sleep able though 😉

battalionsucks
June 28, 2012

If you forget to remove your items first, you’ve got bigger problems than a bunch of shit-covered survival gear. You may come to the realization that you need that gear more than anyone else because of your level of stupidity, but that is doubtful considering you were an idiot before, so you’ll probably still be an idiot afterwards. You should strongly consider removing yourself from the gene pool after this occurs.

joshrussell357
June 30, 2012

Hey David, I cannot find the video I believe you posted about retreat security. Where did you get your early warning devices? The kind that has a trip wire and makes a loud noise when triggered? I have searched ebay and the internet and can’t seem to find any. Do they have a specific name?

southernprepper1
July 1, 2012

You can buy them at Walmart or other similar type of store. They are cabinet alarms or door alarms. I have seen them at the dollar store also.

RAMKING61
July 1, 2012

Please test the size of the opening by having a big guy(at least 210 lbs) try getting in…then see how easily he can move around inside.

crysta555
July 2, 2012

sportsmansguide dot and com have a nice variety of motion detectors which can span up to 500 foot and sets off an alarm. remote, no wires. Nice prices too, everything very affordable compared to the rest of the web.

Howdy! This is my 1st comment here so I just wanted to give a quick shout out and say I really enjoy reading your articles.
Can you suggest any other blogs/websites/forums that cover
the same topics? Thanks for your time!

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