A question for the growers using Jacks 5-12-26

[eric2028]

After speaking with Krystal I started mixing 450 grams of jacks in a gallon water jug with ro water. 580 grams of calnit in another gallon jug with ro. No more gunk happening or floating around whatsoever. I run 32.5 ml/gallon of jacks and 18 ml/gallon of calnit with 1 gram/epsom in bloom and love it.

 

[Hookah79]

Iam using condensation water from my ac instead of distilled water i was buying from stores.I also used standard tap water to make a concentrated mix but with this one iam not doing 10 ml each,i add enough jacks to hit 550ppm and then add calnit to hit 850 ppm.I only make small concentration of tap water at a time as i dont feel comfortable letting it sit with all the stuff that it comes with.

 

[meadowman]

any issues using different brand of cal/nit with jacks?

 

[Hookah79]

I use Yara calnit from mbferts.

 

[samiam]

Ever since a year ago the jacks has this foam shit that floats to the top, it's so bad I have to take a fish net and dip it out, i emailed them about it with pics but never got back to me.

I figured they're probably sourcing cheap Chinese material now. But seems to be working as normal

 

[samiam]

If I need my pH to go down I add pH down to the jacks stock solution like 1 cup of pH down.
The same for pH up I add to my silica stock solution.

 

[Big_Al's_Buds]

any issues using different brand of cal/nit with jacks?

I use a generic greenhouse cal nit form Terris.. $26 for 55 pounds

 

[samiam]

I use calnit from hydro gardens it's pretty cheap less than $1.00 per pound doesn't have the dye just mixes in clear no problems as well.

 

[beta]

If I need my pH to go up I add pH down to the jacks stock solution like 1 cup of pH down.
The same for pH up I add to my silica stock solution.

Is that safe to do, precipitation wise? If so, it'd save me a bunch of expense and complexity. I'm working on getting Jack's going as a stock solution w/ Dosatron injectors, being able to mix ph down into the Jacks would mean one less doser, and one less stock solution to maintain.

 

[Treetroit City]

Still trying to figure out how adding ph down will make your ph go up...I'm sure I'm missing something here.

 

[samiam]

Is that safe to do, precipitation wise? If so, it'd save me a bunch of expense and complexity. I'm working on getting Jack's going as a stock solution w/ Dosatron injectors, being able to mix ph down into the Jacks would mean one less doser, and one less stock solution to maintain.

I've been doing it that way for years with no problems, here's how I set up my dosers so each doser can be adjusted by ppm.

 

[Rabbi]

Update: So switched back to AN yesterday as my plants were looking stupid yellow again. Hate to say it but I'm officially done with Jacks. Take care gang.

 

[Rabbi]

we will be here if you find yourself short of money in the future

Lol. Short of money now, that's why I'm forced to switch back haha.

It's really too bad though because yeah the price difference between the 2 is certainly what attracted me to Jacks in the first place.

It extra sucks that I seem to be the only person on the planet who can't make it work lol. Oh well, that's way she rolls sometimes I guess.

I'm not completely done with dry nutes though. Just gonna take some recovery time and than I'll try my luck with a different company.

Thx again though to you and everyone else here who tried to help me. Even though it didn't work out I appreciate the effort.

 

[beta]

I've been doing it that way for years with no problems, here's how I set up my dosers so each doser can be adjusted by ppm.

Awesome, thanks for the advice!

Do you know if it's safe to add fulvic acid stock solution to the Jack's Hydro stock solution as well?

 

[rdwc grower]

so to recap (lol) in a deep waterculture setup use jacks 3g-2g-1g per gallon method in tap water NOT RO water and maybe use fulvic and or silica if you want not necessary correct?

 

[Miraculous Meds]

so to recap (lol) in a deep waterculture setup use jacks 3g-2g-1g per gallon method in tap water NOT RO water and maybe use fulvic and or silica if you want not necessary correct?

You wont need anything besides jacks and calnit at 1 to 1.2ec in ro water to be successful in dwc. Id dial that in. If deficiencies show up, fix the environmental or water frequency problem. After you have successful healthy grows, add whatever additive you wish to test and see if it can improve your base formula. Adding fulvic acid or silica is not necessary.

 

[Treetroit City]

You wont need anything besides jacks and calnit at 1 to 1.2ec in ro water to be successful in dwc. Id dial that in. If deficiencies show up, fix the environmental or water frequency problem. After you have successful healthy grows, add whatever additive you wish to test and see if it can improve your base formula. Adding fulvic acid or silica is not necessary.

Well in ro you are going to have to bring the ph of the final solution up so may as well use silica for that. That's my feeling anyway, 1 ml per gallon of protekt before the jacks is how I do it.

 

[Miraculous Meds]

Well in ro you are going to have to bring the ph of the final solution up so may as well use silica for that. That's my feeling anyway, 1 ml per gallon of protekt before the jacks is how I do it.

I don't have to bring up my ph. Maybe my ro lets a trace amount of bicarbonates through. Measures 0ppm ph 7 pretty consistently. sometimes 10 ppm on my hand held blue lab.

 

[Treetroit City]

I don't have to bring up my ph. Maybe my ro lets a trace amount of bicarbonates through. Measures 0ppm ph 7 pretty consistently. sometimes 10 ppm on my hand held blue lab.

After adding jacks and calnit you're at 7? I'm at like 5.

 

[Miraculous Meds]

After adding jacks and calnit you're at 7? I'm at like 5.

Sorry if I was confusing. I am at 0ppm and ph in my ro water.


After adding jacks and cal nit to 1.2ec, my ph settles the first day around 5.8-5.9. When first mixing it can show as low as 5.2 to 5.6ph. But with mixing and usually within minutes to the first hour it settles up to 5.8. I have 2 bulk resevoirs with guardian bluelabs in both, cleaned and calibrated once a month. And I have handheld blue lab combos to check the feed res's. the combos sometimes get off calibration by .1 or .2, but the gardians consistently measure the same ph side by side within .1.


I do think that its possible that my ro lets a tiny bit of bicarbonates, causing a slight ph up effect. but Idk, ive ran gh 6/9 for the longest time in ro, and it came out 5.9, at 1.2ec for me as well with no adjusting necessary.