Rabbi
Member
I'm using r/o water now. ppm is always 0 so far.
The shitty thing about r/o water though is I want to change out my rez right now but won't have enough water until late tonight or tomorrow.
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A question for the growers using Jacks 5-12-26
- Thread starter Jabapc
- Start date
I'm using r/o water now. ppm is always 0 so far.
The shitty thing about r/o water though is I want to change out my rez right now but won't have enough water until late tonight or tomorrow.
greengrassgrow
Member
Maybe you could fill a smaller container and use it for the needed watering while your lager rez is filling with r/o?. I do this with a 5gal bucket when i what to tweak or add something just for 1 watering, and leaving my res alone.
Rabbi
Member
Good idea actually. Maybe I'll just fill the rez's halfway(with half the nutes) and top them off when I have enough water. Thx for the suggestion.
growteam
Member
I have a "water reserve" res too. Its just a big 500 gallon tub of RO water. Aerated.
Rabbi, you had a deficiency at 400ppm? How big are your veg plants?
The ones at 1000ppm are looking good? Yea I wouldn't change it neither if its looking good. How big are your plants in flower?
Im shocked your running at 1000ppm. Keep us updated.
growteam
Member
Hmm but thats the stock solution. That just means you will have to use more stock solution to get the desired ppm in your res.
Rabbi
Member
Unfortunately I didn't realise the stock solution issue until I jacked up my ppm's(in veg) to 600ppm just today, so don't really want to add more nutes. I'm now assuming the deficiency came from lack of cal/nit. No big deal, I'll change it out and put ppm's to 400 with proper ratio of nutes. It was a stupid mistake, just glad I caught it and didn't start making adjustments with the improper ratio's.
you really need to figure out the scale of your ppm meter. its actually pretty signigigant in terms of referring to your nutes publicly. we dont know if by 400 ppm you mean .5ec or .8 ec. depending on the scale that could mean the difference between over and under feeding a clone.
its hard to know what you mena without knowing the scale.
if you are out of ro and you dont have crazy fucked up well water or live in la use tap water.
i never use ro water but my tap is 60 ppms (700 scale) you can also mix it half and half. alot of folks do that.
bottom line is that under watering or keeping a bad solution in the tank will fuck your plants more than giving them unfiltered water and will do far more harm.
sounds like you have the wrong size ro filter for your grow. maybe get a 100 gallon reserve tank that you draw from so you can keep it full of ro.
its hard to know what you mena without knowing the scale.
if you are out of ro and you dont have crazy fucked up well water or live in la use tap water.
i never use ro water but my tap is 60 ppms (700 scale) you can also mix it half and half. alot of folks do that.
bottom line is that under watering or keeping a bad solution in the tank will fuck your plants more than giving them unfiltered water and will do far more harm.
sounds like you have the wrong size ro filter for your grow. maybe get a 100 gallon reserve tank that you draw from so you can keep it full of ro.
Rabbi
Member
a "water reserve" appears to be a great idea right now, no doubt.
Yes have a deficiency but now figure it's due to lack of cal/nit since mixing the wrong ratio in my stock solution.
Yeah the ones running the 1000ppm are looking great so far but I'm going to keep a close eye on them. I may even lower it a bit just to be safe and see if I notice any differences(good or bad).
Rabbi
Member
My meter is a "Hanna" meter if that means anything to you. 500ppm = 1.0ec.
I will fix this up, not going to just leave it.
My tap water comes out at 550-560ppm. Not good to say the least lol.
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Rabbi
Member
it's the reading of my meter. Think I'm going to lower it(ppm's) though. Thinking it could be possible that their looking good right now because they were underfed before and are just catching back up.
growteam
Member
Right so if you have a big res of 0ppm water. And your trying to get 750ppm solution. You stick your meter into the res, pour in 5-12 until you get to 450ppm. Then you pour in some ca/ni until you are at 750ppm. Is that how you do it?
Rabbi
Member
No not exactly. I pre make stock solutions at 1 part jacks to .67 of calnit. Then I'll pour in equal amounts(Jacks first, than cal/nit) in my rez till I get my desired ppm.
growteam
Member
So you have a one gallon jug of yellow.
And a one gallon jug of blue.
Right? (you could put up to 3lb of powder into each 1 gallon of water. I use 2lb.)
Then you pour an equal amount ie a cup from each until you get your ppm to where you want it?
I see where your having problems now. Thats why you had the problems when you had your stock solution that was off. I get it now.
If you measure it in a way I suggested above, it wont matter if your yellow jug concentrate is made out of 2lb powder and your blue concentrate is made out of 1lb powder. You will just end up pouring more of the blue into your res to get your desired final ppm. I personally find it more accurate. Delta9 does it that way too. Then you wont have to worry about the equal volumes. PPM is more accurate in my opinion.
And a one gallon jug of blue.
Right? (you could put up to 3lb of powder into each 1 gallon of water. I use 2lb.)
Then you pour an equal amount ie a cup from each until you get your ppm to where you want it?
I see where your having problems now. Thats why you had the problems when you had your stock solution that was off. I get it now.
If you measure it in a way I suggested above, it wont matter if your yellow jug concentrate is made out of 2lb powder and your blue concentrate is made out of 1lb powder. You will just end up pouring more of the blue into your res to get your desired final ppm. I personally find it more accurate. Delta9 does it that way too. Then you wont have to worry about the equal volumes. PPM is more accurate in my opinion.
Rabbi
Member
Lol, yes I have 1 gallon of each(at 1:67 ratios) but where I was off is that I read my scale wrong. In my my cal/nit bottle I accidentally poured in 5.80 ounces of cal/nit instead of 580 grams, so I actually was no where near the 1:67 ratio that I thought I was. This is why I think I have the deficiency in veg. I will be correcting this tonight though.
I mentioned this on the last page, you probably just missed it
.Edit: just re-read your post, yeah I think you got it now lol.
Rabbi
Member
How would you calculate to get the 1:67 ratio doing it that way? Like for example if I wanted a total of 750ppm how do you know how much of each(jacks and cal/nit) to add? I do the pre mixes because it's easy to figure out that way.
Rabbi
Member
K that's easy enough, thx.
growteam
Member
Simple brother.
600 ppm is 360 ppm jacks and 240 ppm calcinit
750 ppm is 450 ppm jacks and 300 ppm calcinit
900 ppm is 540 ppm jacks and 360 ppm calcinit
1000 ppm is 600ppm jacks and 400 ppm calcinit
This way you dont have to ever worry about a cup, or a teaspoon or anything about one stock solution having a higher concentration. It wont matter.
Just stick your ppm meter in the 0 ppm water. If your going for 1000 ppm total then dump some of the yellow concentrate stock solution. Dont worry about measuring a cup or anything like that. Just dump it in and watch the ppm until it gets to 600. Then add the blue concentrate stock solution until you hit 1000ppm. Your basically adding 400ppm of blue solution. (600 x 0.67 = 400)
600 ppm is 360 ppm jacks and 240 ppm calcinit
750 ppm is 450 ppm jacks and 300 ppm calcinit
900 ppm is 540 ppm jacks and 360 ppm calcinit
1000 ppm is 600ppm jacks and 400 ppm calcinit
This way you dont have to ever worry about a cup, or a teaspoon or anything about one stock solution having a higher concentration. It wont matter.
Just stick your ppm meter in the 0 ppm water. If your going for 1000 ppm total then dump some of the yellow concentrate stock solution. Dont worry about measuring a cup or anything like that. Just dump it in and watch the ppm until it gets to 600. Then add the blue concentrate stock solution until you hit 1000ppm. Your basically adding 400ppm of blue solution. (600 x 0.67 = 400)
