I did the eggshell thing and the dealbreaker for me was the inability to accurately measure dose.
Maybe I’m missing something but that was the killer on my end.
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Yeah I’m not sure how I’ll use it yet but probably weakly because of that concern, though I think there’s probably some sort of calculation assuming a starting weight of eggshell, I looked up the ASTM test method for calcium in solution, and it’s a little more white lab coat than I want to do, though the chemicals are common and not expensive: EDTA, sodium hydroxide, and another solution or two:
D511-14.pdf (123.1 KB)
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I got into moles and that shit and tuned out.
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Couldn’t you just assume the shell is almost 100% CaCO3 and use the fractional atomic weight of ~40% Ca to make a reasonable guess? Add vinegar according to starting mass of shell for controlled neutralization (one acetic acid per CaCO3). You’ll have a known volume of liquid with a known quantity of Ca. Hell, you could probably get away with more vinegar than you really need you’ll still know how much calcium should be in there. It should be pretty easy to dilute to the concentration you want from there
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See now that’s the sort of thing I was talking about!
Edit: just looked it up and eggshells are 38% calcium by weight, I don’t know yet what roasted are.
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Right, that’s easier than metering it out carefully. Just excess eggshells to react all the acetic acid. Cool.
I haven’t worked out the conversions but you can also calculate the amount of egg shells required to react a given amount of vinegar.
1L of 5% m/v vinegar is 0.83 Molar, implying you will need half that, 0.415 moles of Ca. CaCO3 is about 100g/mole, so you need AT LEAST 41.5g of shells to yield a liter of your 2.5% m/v Ca solution.
I only worked that out because I feel like that’s quite a bit of eggshells. And it may be easy to not have enough of them. I’ve never weighed them but I’d pay attention to it.
EDIT: Google says an eggshell is about 5-6 grams each. So, I expect 8-9 shells to disappear into 1L of 5% vinegar. Note this is based on the limited chemistry knowledge I had to gain for my soil amendments
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Today: I got an exciting new job, details to come…
Tomorrow: we pollinate!
Time to work through more of the packs of pollen @Radicle_Reefer traded to me, last time I did it too late I think and also my technique wasn’t good. This time I think I’m ready.
From this freezer selection:
I picked:
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Oh yeah!!! Hope everything works out!!!
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that hawaiian cat piss !!! ohh yeah good ammonia terps
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I was already following but my eyes are peeled now !!
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New job means Daddy Dirt gets a new light as a treat! Ordered one of those slick new Viparspectra XS1500 with the lenses so 150w covers a small tent pretty nice and evenly, they look banger and I needed at least one more small light, I might order a few more if I can keep using the $50 coupon and DRMJCOCOPRO code that brought it down to $83 shipped, damn close to 50 cents a watt for good LEDs is hard to beat!
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Congratulations on the new job!! I hope there is an increase in pay, with a decrease in responsibility and accountability.
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I’m currently unemployed, so definitely an increase in pay!
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Yo Dirt! Just getting caught up but congrats on the new gig man, and the new light 
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Congrats on the new job Dirt, hope it treats you well!
Haha, unfortunately I don’t think that exists anymore. It seems to be the do more with less motto for most occupations nowadays, work that used to be done with 6 people is now made to get by with 3-4. Older people retire, let’s just dissolve that position and divvy up their workload between whoever is left.
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Guys! I just popped 4/4 seeds for the first time in a while, I think I really have been neglecting the advice to use a sterile medium, because this time I scuffed and rinsed the seeds in H202 solution then water, but no prolonged soak. I placed them in Jiffy pucks moistened with weak H202 solution (1:20?) and under dome in a clean stainless bowl, with an Inkbird keeping things at a steady 80-85 degrees inside. After three days this is what I’ve got, these are the coop Durban Poison (Dutch Passion, by @guitarzan):
That is a weak solution of Maxicrop kelp, Mr Fulvic, and MegaCrop and I’ll unwrap them tonight and place into 3” tall square pots with a very light mix.
I will pop 4-6 more seeds to double check the success rate with this technique, and as long as it is good, I’m going to get the Vortex F1s going in 2-3 sprouting batches for the Coop I committed to last year.
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Pollinated a full main branch on all three girls in flower with the AKBB Hawaiian Cat Piss pollen, used the whole packet going over them twice with a brand new acid brush from the dollar store that I got for this, when I go back in I’ll hose down the whole tent heavily turn the fans on and call it a night. Tomorrow I’ll do the Garlic Dog on another set of branches, really hoping this works!
Picked out the next set of seeds to pop, one of the oldest packs I have (from my own purchases), this is an early COPA freebie I picked up on Strainly for $15
Wearing a shirt I won from my buddy Jammy, who’s been writing this slogan and making tens of thousands of slaps to give out since 2002, in Boston and north
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Wishing the best with the pollination!!!
Also good luck with the job!
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