pool life! Thanks for the info. Do you have a model #? Ive ran another companys air vacuum pumps b4 but never a piab. I forget the other name it was vacu somethin, GW recommended it moons ago on icmag for the mkiv
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also, i assume you use it for your initial pull down too, as well as subsequent column changes? It goes deep enuff?
Itâs one of their Classics. I canât remember which and I canât unmount to check right now because we are in the middle of a run. They have several different âclassicâ models. Ours isnât the latest and greatest model either but still works like a champ.
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Ok ill look into it a bit. Thx Mr. Marshall!
Would this be prior to opening the liquid line to flood the column? if my tank is at -40f and 10psi, , i should pre charge with n2, this makes too much makes sense, i would flood my column and wait to see if i needed it before i would use n2, ,. so charge my tank with n2 to , lets say 40psi, and then lett her rip. thhis makes much more sense to me, is my thinking correct here?
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Donât forget to bleed the nitro when done injecting before recovery
Get colder than -40 if u can âŚpsi will be at zero before adding nitro
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i will not be using my n2 untill i get proper prv in all locations, after reading this thread. yes i have bleed lines on my solvent tank and my columns. what is safe pressure to set regulator to ?
now i see! add nitro pre flood , thank you @StoneD
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Yep it just gives u back some psi when the cold takes itâŚto ur tank that is I donât like using it any other wayâŚif I feel I need to completely clear the column after blasting to make sure everything in collection I just add more nitro to empty tank and roll on. Instead adding to top column. I never move my nitro line during injection till Iâm satisfied
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When you soak you also manage to pick up more undesirables. If youâre trying to get a larger yield on a single pass try using bi-directional flow and no soak.
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Correct, just like liquid is driven from a can with propellant.
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im setup 6x24 base hemi lid,platter,no jacket, and 3"columns, sleeved and reg, #30bvv solvent tank, where do you move your n2 to? if at all
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my last run i ran cold and fast, it was one of my best processes. but i have not tried this, i have a trs that i also have not used, passive was killing me , and then i got a grasp on basic thermodymaics, usually im running 1lb of material, but i believe i have capacity to run two. Is the n2 enough to bottom flood, ive been reluctant to use too much n2 as not to have any safety issues. if i set my regulator to 45psi feed, is that too much?
Just take it off so I can move my stuff to recovery. Lines arenât long enough. Iâm smalll
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Idk about n2 pushes for bi-directional flow systems I was just suggesting bi-directional flow to bypass soaking
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I have bi di couplers, i use one as my in flow to collection on top of filters, i have not run bi di, i use 3" showerhead, on my material column, last run i did no soak and it went perfect, 5.5lbs of solvent through in4 and a half minutes, , first timei had done that and i loved it
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Thanks for your input @GroovyOctopusLabs , i am prepping my first live run now, I want to set up properly given the equip i have , alll 3" colums and 6" x 24" collection , hemi , platter, (2-6"x12" spools)
the grower is cutting down today. I am going to use OTSS tek, first time as well.
i am going to stay with top flood with 3"x18" dewax column, i have a #30 bbv ss storage tank, non jacketed. I have extra valving and fittings, one hemi reducer filter , and 2 3" filter plates, only med and fast lab paper and ss ball bearings(which i dont think do much other than in dewaxing over 2 hrs)
my n2 is at 1800psi,
i am thinking no dewax for this live run. Cold n fast?
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Holy smokes! At least if it totally failed nobody wouldâve been physically present at the scene hopefully?
My setup is small as well, I think i can push from my solvent tank fully? 3x18 sleeved, I have purge valves on column , base, and storage tank
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