Lefthand's Synthetics from Scratch

Wtf…

That must be a typo?

lab1

but…

lab2

The MSDS CAS number matches other ag grade calcium nitrates on the market… so I’m assuming its 14% nitrate and 1% ammonium right??? Hope they didn’t ship these labels out already :smiley:

The aliexpress TDR sensor is pretty slick, not sure how accurate it is but it has been a good glimpse into how fast the medium is drying back and how much salt has built up/washed out. Ill write something up on it once I have more time to play around.

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Yes, wtf indeed. It is a fuck up on their part. And, it’s the same one they made when they originally replied to me, and I pointed it out to them then. I didn’t look closely this time, because I assumed they knew what they were talking about.
I wrote them back. See what they say. But yea, probably just the other way around, that’s all. (certainly not 14% ammoniacal. that’s ridiculous. which was my response the first time).

Good stuff, man. Thanks.

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I think they owe you a TShirt at least :joy:

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Haha - no doubt. I think that’s the most they’ve given greengenesgarden though, and he’s probably turn 100’s of people onto Jack’s now, if not more. So I don’t expect anything.

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What do you guys think of these options for Calcium Chloride?

The first option, read the info in of the images:

“After dissolution in potable water and filtering or settling to remove insoluble residue, …”

?

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As far as I know, cannabis is a plant with limited chloride tolerance, so small amounts are probably ok. But how many ppm/l would be a good question and certainly worth a series of tests. I’ll have a look through my documents later, I think I read something about it at some point, but I’m no longer sure and don’t want to say anything wrong.

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They both look similar/ the same. I’m familiar with the briner’s choice one. Price seems really expensive though. Wonder how much it would cost for me to send you some lol. I have a bunch of the briner’s choice.

Weed is surprisingly chloride tolerant. I think quantrill (guy who runs custom hydro) said up to 100ppm chloride is ok but better if it’s 50ppm or under. I use it in flower but not veg. I’m using it at 0.45g/gal.

Not really sure about the filtering insoluble residue thing.

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thanks for the info :slight_smile:

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I ordered some of that briner’s choice CaCl. It’s not the same as the DowFlake version you had. But I remember you got something better didn’t you? Was it this exact Briner’s Choice version I linked in post #429?

I also ordered 5Lb of CaSO4 for about $30. I hope it’s cleaner that the Alpha Chemicals stuff.

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I have the briner’s choice. I got a 50lb bag. I have the dowflake from years ago but just use it to melt ice now.

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I try not to get too wild with it, but I think that’s right. It’s strain dependent, but surprisingly tolerant. There’s no problems I’ve observed with using it at 40ppm. I seem to remember reading a study that found chloride started causing visible problems around 150ppm(?).

Anyway, it’s pretty workable. People use it on tomatoes all the time and they’re pretty tolerant too.

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On the topic of CaCl. Do any of you mind plugging athena fade into hydrobuddy and sharing the chloride results?? I got 350+ppm at their recommended 19mL/gal… double checked everything, but that doesn’t seem right…

Do you have a link?

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Are you asking me? a link for what?

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Yea. A link for the athena fade GMA information.

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Ah I was just going off the back of the bottle , would a pic work?

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I also got a really high number. I can’t remember but high chloride is possibly is an antagonist to N. I wonder if that high amount in the last few weeks helps the plant “fade” in that way or if something else is at work.

Sorry for the late reply about the teros. I have the zsc one. Pretty similar or same to the solus I think. It’s just a spot check thing but the dream is to have the graphs one day lol. There’s these boxes that I was thinking about getting at some point.

Something like this

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7% chlorine. I was looking for the application rate (what did you use?) and then I reallized - oh, it’s a liquid. Did you enter it in HB right? I don’t mess with liquids in HB (nor in the garden, really). Daniel has mentioned there’s some tricky-ness to it. There’s an “add substance in milliliters…” check box when you add a substance, for liquids, to do W/V instead of W/W. I don’t mess with it.

I tried adding a substance and only entered 7% in the Cl field, then I tried 19(g/gal) and got the same 351ppm you did. So I assume that’s what you did. Checking the box does nothing to the results, so I also think you’d have to do some math (or get the info from the manufacturer/product) to get some number to enter other than “10-19mL” or something.

I don’t know.

I see it’s “derived from” calcium chloride, though. Cool.

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Worth looking into, thanks for the lead :+1:
If you build out a vwc%/pwEC contoller/meter please ping me if you share it here!

@Nitt I wonder if hydrobuddy assumes 1g/ml density by default, haven’t looked very closely, lol. I did enter it w/ that check box checked and used 19ml/gal.

Just stood out as odd & got me thinking.

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How is your diy monitor/controller doing?

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