Atmospheric pressure?

[Truthowl]

I'm trying to farm mealwood but it's saying atmospheric pressure is too low. Not sure what it means. There is little breathable air in the room but I thought plants like carbon dioxide?

Anyone know whats going on and how to fix it?

[Storm0267]

I had the same problem, it killed my plants

[Lazy Fangs]

You need to have a certain mass of air in the room. It can be any type of air, I learned. You need to have like in the 500g+ around the plant for it to not wilt.

[DDog]

How do you accomplish that?

[Sleepa, Creepa]

Originally posted by Truthowl:

I'm trying to farm mealwood but it's saying atmospheric pressure is too low. Not sure what it means. There is little breathable air in the room but I thought plants like carbon dioxide?

Anyone know whats going on and how to fix it?

Its exactly as you describe, "atmospheric pressure is too low...There is little breathable air in the room" well, you need to think about it. What devices in the game generate an atmosphere? well the algae terrarium, algae deoxydixer, electrolyzer, and the oxylite blocks. Strategy: dont seal a room so that the pressure (atmosphere) spreads. Unless you have gas pumps, gas pipes, and the output vents.
Also: there is no tooltip on mealwood but, mealwood is not a plant its a living organism that needs oxygen or contaminated oxygen to thrive. It is also affected by temperature!
Its pretty ez if you read the building descriptions

[Tikigod]

Originally posted by Sleepa, Creepa:

Strategy: dont seal a room so that the pressure (atmosphere) spreads. Unless you have gas pumps, gas pipes, and the output vents.

Actually, by properly placing oxidizers and some terrarium in sane locations you can have atmosphere spread and maintain a strong and stready atmosphere across your entire base without pumps or any of that nonsense.

Pumps, filters and vents are great when you need to get specific gases somewhere fiddly but if you're depending on them just to have oxygen fill your base so your dupes can breath, you're doing something critically wrong with your layout and where you're locating your oxygen generating machines.

Not the best example as it was a non-optimal starting location where immediate areas at start were filled with Hydrogen and Carbon Dioxide so I doubled up on my usual number of oxygen generation but something like:

http://steamcommunity.com/sharedfiles/filedetails/?id=871316701

So Oxygen is produced around the bottom of the living/working parts of your base, it then flows up and pushes present carbon dioxide downwards where it then gets cleaned out by the terrarium. Keeping most tiles solid ensures Oxygen spreads across a level rather than just flowing straight up, then a couple of gas passable tiles distanced from the lower entry point ensures the spread Oxygen escapes toward the desired busy area.

http://steamcommunity.com/sharedfiles/filedetails/?id=871316803


But again, not the best example of showing the results as the entire lower right area being dug out was part of an decent sized cave filled with nothing but Carbon Dioxide and unearthing that caused a lot to flood into the local atmosphere and not get properly cleaned out until around Cycle 24 I think it was... after that though, alongside a single deodorizer near the compost & outhouse and it was all fine and dandy for some time never once needed to touch pumps, vents or the like for maintaining a breathable atmosphere. That is until sources of algae all dried up.

[The Fireman]

Anyone can survive anything until the algae dries up, and the benefits to venting far outweigh any complexity in the task.

I'm more interested in a long term water/oxygen supply source...slime mining is a hard road.

[Grek]

Originally posted by LA:

Anyone can survive anything until the algae dries up, and the benefits to venting far outweigh any complexity in the task.

I'm more interested in a long term water/oxygen supply source...slime mining is a hard road.

steam gayser + electrolyzer

[The Fireman]

Grek. THANK YOU. Those four little words just enlightened me.

I've only found one steam geyser this far so I hadn't 'really considered it as the long term answer, but of course it is.

[Repconn]

I always build my mealwood farms way below my oxygen generation, so the room floods with Co2. The mealwood plants don't require oxygen and Co2 creates a sterile atmosphere which prevents the harvested meal lice from spoiling. Same goes for Bristle blossoms.

[Eagle_of_Fire]

Originally posted by Truthowl:

I'm trying to farm mealwood but it's saying atmospheric pressure is too low. Not sure what it means. There is little breathable air in the room but I thought plants like carbon dioxide?

Anyone know whats going on and how to fix it?

Contraty to our real world physics, in Oxygen Non Included most entity consuming oxygen or any kind of gaz really will not provide with a constant and expected replacement. I know this is counter-intuitive but trust me... I noticed this since the very start of this EA and I sure hope it get fixed at one point because it is very arkward and annoying.

That plus the fact that every single time you dig thru something you basically create a pocket of void aid to be created, which ultimately slowly but surrely thin out the air you actually have available... Also the CO2 remover which remove CO2 without replacing it with any other gaz, etc etc... Yeah. You will always eventually end up with a thin atmosphere.

So, basically you are probably already familiar with the fact that your dupes and plants need oxygen and that using alguae farms you can cycle the CO2 into more oxygen... But to compensate for a now low atmospheric value you need to bring more gaz to the table. Any gaz would achive this goal but of course that's not what you want... And this is where oxydizers come in.

Oxydizers take alguae and magically transform it into pure gaz. Conveniently that gaz appear in the form of oxygen.

If you only use oxydizers you'll notice that after a while it will shut down by itself because the pressure get too high. Same problem here but in reverse. If you were to keep a particular zone completely enclosed so it do not lose any air whatsoever your oxydiser would never work again... This is where the alguae farms come in since they really do convert CO2 into oxygen without having to force even more gaz (and thus atmosphere) into the enclosed space.

In practice, opening and closing doors, mining more space, gazes naturally moving around... It all participate in removing or moving oxygen and gases around.... And will lead to your oxydiser starting working again once in a while, so it is easy to miss. But in practice you really need a mix of both of those oxygen generation buildings to have everything working well.

[Truthowl]

Thanks everyone. I understand what it means now and I've fixed it.