So you should do a video with the updates or some pic's

@@lorimaravilla8379 I use a battery/bike pedal electric air pump in my doomsday shelter. I have no interest in making a PVC pump and I don't post details on my systems. I only giged him on things that he thought were OK but clearly has no real experience with PVC pipes or nuclear fallout. I said it was a good concept, my comment was to warn others that he has some fatal flaws and how to fix them.

Plumber

@@lorimaravilla8379 tbh 2 socks taped over a vent are better than nothing. This is better than 2 socks.

@@lorimaravilla8379 The king of random has a home made pvc air/water pump. I'm sure that design can be easily adapted for use.

Ok

It's a good demonstration of that principal. That's it. The filter itself doesn't work lol

Rewatching too

Maybe some sort of netting ahead of the filter. Or a couple of netting sections.

I would add a water pre filter before your activated carbon filter to do most of the heavy filtering. (same concept as a potheads bong) You can also add a drain+valve to remove contaminated water and a water intake/valve to refill it.

....also use a screen on the bongs stem to create many small bubbles instead of large ones. That will increase the surface area in contact with the water increasing filtration.

Go to the doctor mate

@@artisankatstudios7902 cheese cloth would be great

DIY FOR DUMMIES....UM WHAT KIND SHOULD I GET?....SERIOUSLY. THANK U IN ADVANCE.

Can anyone make me a couple of these? I need 4. If so pls let me know

Might help but I would caution the added water filter bong my cause mold growth as this would increase moisture levels to 100% within the filter system

@@JK-ux5hq our dashed hopes :(

Stone wool anyone?

I'm assuming that the 1m recommendation is based on the military's radiation shielding units tests? They say that about 1m of dirt is sufficient to shield from most common types of radiation. You'd be amazed at what can block various types of radiation. Your skin is enough to block some types, and the walls of your house are sufficient to block most others.

Hmmm, as a gold planner I have a surface air, dry suit, hmmm...I really think the bunker is for hiding my supplies...and forest fire...I lost every prepped item and farm tools of 40 yrs... last year...to a massive California wildfire...Earthen cabin is sounding better all the time...

90% of the radiation has dissipated within 24 to 48 hours. An air burst (used over cities) produces less fallout than a ground burst (airports and hardened military facilities)

I don't understand why you said 20 miles away is necessary. The over pressure of a 500 kt weapon would level houses probably up to 3 miles and the thermal pulse could cause burns to anyone out in the open up to 15 miles. But a well made underground bunker would survive most warheads from just a few miles away. Yes a direct hit even from a small nuke would destroy it but it does not take much distance for the overpressure to drop significantlly. And yes 4 feet of earth provides good protection from the radiation. I would have water bottles all around inside because water protects from neutron radiation. Most warheads today are in the 250 to 800 kt range and are much more accurate than in the 70's. But the destructive power of a nuke does not go up with yield a much a lot of people think. A 100 kt weapon is not ten times more destructive than a 10 kt weapon. It is is closer to 2 times more destructive. There is a formula for this but I can't remember it.

blogobre Yes, I think a couple of corners might help but I would absolutely include the filtering aspect.

Brill thank you

Exactly, outside air itself isn't contaminated, except for particles

it’s all well and good until the gutter bracket breaks off or the balls get soggy an stick in the hole… then it’ll be like having that plastic bag bungee’d around your neck 😳 1% will have intern outside cleaning the balls until they keel over.

And my only consideration for air exchange has been keeping mice, snakes and spiders out! Oh my! back to the drawing board...my concealment idea is putting the chicken coop over top, with sealed drainage away from “roof of bunker”...

@@thewindyone5228 Chicken manure breeds Histoplasma fungi. Histoplasmosis in the lungs can be incurable and a miserable way to die.

regarding your never have to use it? well now with Putin playing silly buggers we might well have to

Thanks for comments yes a spare filter would be usefull but if pointing downwards should not block to quickly a protective suit would be usefull ,NBC and Hazmat suits can currently be purchased on line cheaply in the uk

@@prep-rscharity4866 I got a couple of full face respirators, suits and gloves off of amazon, fairly cheep too. Spent less than 2 hundred quid on the lot got full nbc protection as well. Mind you, I live in a ground floor flat but using the inverse squre law have found that living in my hall and the two internal walls should allow enough mass / distance to survive gamma radiation and the suits for alpha / beta.. Got half a dozen duct tape rolls and heavy plastic dust sheets to seal off the extremities. Just hope the windows don't blow in!!!

I never heard of Zeolite being used. When you have a chance, can you post some information about it up here?

I agree with you. I observed the same thing, and thought I didn't understand the setup, so I went back and rewatched the video. A short cylinder of cotton tightly fitted into the one containing the charcoal bag will do the trick. If not, his valving mechanism is perfect.

I thought the same thing. Activated charcoal is mostly used for viruses or bacteria. So if the smoke was bacteria or viruses then your pulling contaminants into your room. The water idea is a great idea by the commenter above, the charcoal is a great idea, but if you dedicated a room that is sealed to a HEPA filtration system then use a normal air pump to disperse it throughout your room that should help with radioactive dust. Unless your a while away from ground zero it wont help much unless the wind blew tiny amounts of particulate matter into your region.

Air like smoke is thin. Military and the highest end gas mask use charcoal. The charcoal is course and catches particulates as it's forced through the porous coal. You just need about 3-4 times as much charcoal as he used to actually be effective for a decent amount of time. The whole idea is to trap radioactive particulates. My water filter let's water through but still filters out particulates. The smoke is just so you can see the "air" moving like it is suppose to in one direction.

The downside to automating things, batteries drain down. Solar panels become useless after so much radiation exposure.

@@lassitc True and I had thought of that. So if you did, you'd want an efficient system for sure, that's easy on your batteries. The most minimal horsepower needed, to move the ramrod/plunger. Certainly have an easily detachable ramrod too, so you can hand pump it when you are lean on power. But if you have it spare, it could give you a break from pumping by hand, hehehe.

THANK YOU

I THOUGHT ABOUT HOOKING A BIKE UP TO IT AND YOUR IDEA IS SAFER WHILE SLEEPING LOL

Thank you for your kind remarks John. We are in the next couple of weeks putting another pamphlet on the website called Domestic Nuclear Shelters which may also be of interest to you.

activated charcoal for aquarium works fine agaisnt organic vapors. Deisgned and tried a gas mask DIY filter, and tested.

Do agree. At least you can DIY Big activated carbon filters with aquarium pellets, work fine against organic vapors.

It would bring in so much fall out lol

You want SLOW and steady. You'd need to power it down to slow slow speed.

dave smith Charcoal is carbon with some extra stuff in it (being it a derivative of wood, this stuff is probably wood related chemicals) Activated carbon would be a lot better. This is just a quick guide for easy to get materials.

Inathy Accabon, cooker hood filters, air inlet filters for gas water heaters/central heating boiler, can filter many nasty substances from air, as for particulate filtration vacuum cleaner filters and even the folded paper air intake filter from vehicles have been proven effective, including as scavenged materials. Personally I would probably have used a "paper" particulates prefilter located in the barrel between inlet and outlet (traps most of the nasties) and the chemical filter "cartridge" above the inlet valve using a wide area 12" diameter 1-2" deep tray of absorbent, for increased airflow with the activated carbon doing it's thing

I was thinking the same. What about a small DC powered fan (computer sized) with a flap on the outside to keep NBC out? You know, similar to dryer vents? You could run the fan on a small solar panel.

Radiation from the blast binds to dust particles, so you really only need to filter out dust. Roughly speaking. And bunkers are only made for people outside the blast zone but inside the radiated dust zone.

Dust particles are not to hard to filter and as others have said pipes should have a 160 turn facing down at the end. A few well positioned vent pipes would provide passive air circulation and thus remove CO2. You could make a simple hand crank to circulate the air better though. And C02 scrubbers can be made as well with one or two chemicals that you can buy on line. If close enough to a target than blast valves would be necessary. I would say within 5 miles from a target blast valves would be needed. You can make them with scrap materials. If you are within a couple of miles from the blast you would need a very well built underground blast shelter. I would probably suggest moving instead of attempting a blast shelter if you are that close to a target. But I have heard of people who have built a system of underground shelters. Basically they are connected by a small opening underground but can be sealed off from each other. This design allows one to temporarily isolate themselves in the deepest most fortified part and later move to other parts with the ventilation system. I can't really explain it but I have seen photos.

Soooooehhh. How did your project go?? Seems relevant all of a sudden…

an electric tight fitting fan sounds a great idea , you would only need to draw air in as it should be able to vent out somewhere at the other end of the room/house . drill a hole in the wall if neccessary, push wire mesh into it , the stale air will find its way out

@@prep-rscharity4866 👍 Thank You! This is what I was thinking, appreciate your reply, please do take care 👍

Don't be there. Really. If you are close to a known obvious military target, MOVE. Fallout protection is not expensive, while a blast-protection bunker is going to cost more than a house 5x the size.

It is neccessary to have a vent somewhere for the overpressure to exit maybe a clever cat flap? Wire wool is a good filter against anything coming in.

Hi Albert, thank you for your questions about nuclear air filters, the first point I would like to make is that, during a nuclear explosion, air is generally unaffected, the main issue is the particles within the air Which vary in size down to a fine dust. These particles are effected by radiation and are harmful, the air filter is designed to filter out these particles as the air is drawn through a barrier of charcoal, the fact that we used activated charcoal is another plus as the dust particles essentially stick to the charcoal. This type of filter has been widely used for decades and is well proven, the same filter would also be effective with other types of biological gas attacks, and so it’s a good all round filter, I hope this information assists, Regards Phil, PREP-RS

Albertus Van Biljon radiation is not from the air its is from the fallout partials. As long as no fallout partials come down your pipe there will be no radiation. Distance is your friend with radiation.

This is a "hasty filter", something you can throw together in an emergency. Commercial check valves, a blast overpressure valve, a commercial micron filter and a hand or motor cranked blower would, of course, be a much better solution. Over here in the States, atomic scientist Kresson Kearny designed a filter using similar principles, a couple of cardboard boxes, some plastic sheeting, a roll of duct tape, and a dozen rolls of toilet paper as the filter medium. See his book, "Nuclear War Survival Skills".

The air pump would gradually cause possitive pressure in the room and so a small air vent would allow air, including carbon dioxide to vent out.