Gh ppm test..

[OSBC]

Ok on the gh calculator if u put in 15 Gro 10 micro 5bloom it reads out to b 779ppm per 1 gallon.. And when I mix at the same 15-10-5 it reads @ 1300 ppms on a tri-meter.. I just calibrated It w 1500 ref solution and 77f/25c,and I also have a blulab dipstick which reads 1100 ppm on the 5 scale.. Trying to figure this out any other gh users out there if you would test this same mix and post results would b very much appreciated!!

Thanks

 

[bear80]

Nitrogen:250
Phosphorus:52
Potassium: 297
Magnesium: 44.8
Sulfur: 15.2
Calcium: Ca 162.1
Iron: 3.24151
Manganese: 1.62076
Molybdenum: 0.02593
Cobalt: 0.01621

Active Elements= 826
Estimated TDS@.7 = 1896
Estimated TDS@.5 =1354
Estimated EC/mS =2.71
Estimated EC/uS= 2709

 

[OSBC]

Ok. So what is making up the rest of the ppms? The other 528 ppm?

 

[Guest 248960]

Are you using tap water?

 

[OSBC]

Well water filtered through a sediment and carbon ppm of 40. So that leaves 488 ppm unaccounted for.. My thought is dyes and buffering agents. If u use gh mix 5g-10m-15b -what ever I water ppms are and see what u get.ppms?Gh calc says 779 cannastats calc says 836 give or take.so the actual nutes available for ur plants to use is in the 800 range not 1300! Also if that is correct testing runoff is useless since the dyes and what ever else is in the mix making up the unknown ppms builds up in ur medium and has no food value aswell as leachs out in ur runoff. Tomorrow I will b calling gh to figure this out! The reason being I have always used gh full/hydro strength @ a feed water water feed schedule till my last run which I followed there dtw schedule which is half strength at feed feed water and it produced complete crap Ie.. Popcorn

 

[Rjstoner]

im not much help in this department just wondering if you ever ran there full line through a ppm test?
thanks rj

 

[joe fresh]

Ok on the gh calculator if u put in 15 Gro 10 micro 5bloom it reads out to b 779ppm per 1 gallon.. And when I mix at the same 15-10-5 it reads @ 1300 ppms on a tri-meter.. I just calibrated It w 1500 ref solution and 77f/25c,and I also have a blulab dipstick which reads 1100 ppm on the 5 scale.. Trying to figure this out any other gh users out there if you would test this same mix and post results would b very much appreciated!!

Thanks

blulab is .7 scale, not .5

 

[OSBC]

The blulab has .5 on one side and 7 on the other.

 

[OSBC]

With all additives..no I just use Gro micro and bloom

 

[fungzyme]

Are you measuring your nutes out with a syringe?

 

[Homebrewer]

Ok on the gh calculator if u put in 15 Gro 10 micro 5bloom it reads out to b 779ppm per 1 gallon.. And when I mix at the same 15-10-5 it reads @ 1300 ppms on a tri-meter.. I just calibrated It w 1500 ref solution and 77f/25c,and I also have a blulab dipstick which reads 1100 ppm on the 5 scale.. Trying to figure this out any other gh users out there if you would test this same mix and post results would b very much appreciated!!

Thanks

15G, 10M and 5B equals around 2.7 EC or 1925ppm on the .7 scale. The only thing that matters is what scale your meter is on and what your meter is reading after you've carefully measured out all your plant food. Do not pay attention to their calculator.

im not much help in this department just wondering if you ever ran there full line through a ppm test?
thanks rj

Before I knew better, I ran every GH product at once in my res and know the ppm contribution of all their products. What's your question?

 

[OSBC]

HB..Why do u say don't believe the nute calc? I use the .5 scale on the bluelab stick, also I have a blulab maestro controller that does ec so 2.0 ec is 1000ppm on .5 scale either way u look at it there standard hydro mix has unaccounted ppm or ec, so my question is what else is in it?or r u saying the nute calcs don't work at all and it really has 1300 ppm of nutes @ .5 scale? What do u run your gh at on .5 scale? Yes I used a syringe. I to have ran all the additives through the calc and kno what there ppm contributions are suppose to b if calc is correct, but I'm just using the 3 part stand alone at the moment.. I am going to make a pbp mix and see what it reads and run it through cannastats calc and see if the ppms add up!Aswell as a gh 15-10-5 w all additives will post it shortly! I want to find out how much actual ppm of nutes is in a 1300@.5scale

 

[Homebrewer]

HB..Why do u say don't believe the nute calc?

Why do you even need one? Add 5mls of plant food to a gallon of water and take a reading. Subtract out your water's ppm and divide by 5, that's the contribution of 1ml of plant food to a gallon of water. Do that for all your products and make your own calculator in an Excel spreadsheet. No offense but nute calculators are for beginners. There is nothing on Earth more accurate than measuring the potency of your products yourself. Personally, I'd never blindly follow a nute calculator, the back of a fertilizer bottle, or even someone else's feeding schedule without calculating the ppms/EC myself. Only you know what ppm/EC your plants do best at.

What do u run your gh at on .5 scale?

I don't use GH anymore but when I did, I fed at around 550ppm on the .5 scale at the height of flowering.

 

[joe fresh]

I don't use GH anymore but when I did, I fed at around 550ppm on the .5 scale at the height of flowering.

every watering? every second watering, once a week..?

 

[Homebrewer]

every watering? every second watering, once a week..?

That was in my flood-and-drain tables. The flora series requires too many bottles and is too salty for promix based on how I do things in the dirt.

 

[OSBC]

What low salt nutes r u using now and wrk best for you..hb..in promix.? I use sunshine4..

I want to kno how many ppms of each elemental nutrient n-p-k ect.. Not just a combined value.. My plants yellow and make popcorn buds w half strength 2.5-5-7.5 at two feeds one water at around700ppm.. I have almost hit 2lb per 1000 w full strength gh@1300@.5scale no additives.feed water feed and feed water water feed. In sunshine.

Gh 15-10-5 reads 1700ppm w all additive as per gh hydro aggressive Have not ran it through cannastats calc yet to see if it adds up ppm wise. Will post tomorrow.

Hb.. When u ran gh@550 what ratio ml per ect did u use? Or did u mix standard bloom 5-10-15 and dilute it?what scale.5

 

[Homebrewer]

What low salt nutes r u using now and wrk best for you..hb..in promix.? I use sunshine4..

I use DynaGro with RO water and feed at about .6 EC at almost every watering in promix (in flowering). My silica additive balances the pH of the base nutes into my ideal range so mixing nutes and feeding has never been easier for me.

I want to kno how many ppms of each elemental nutrient n-p-k ect.. Not just a combined value.. My plants yellow and make popcorn buds w half strength 2.5-5-7.5 at two feeds one water at around700ppm.. I have almost hit 2lb per 1000 w full strength gh@1300@.5scale no additives.feed water feed and feed water water feed. In sunshine.

I work in NPK ratios and EC so I cannot give you specific elemental values. I will say this though, yellow plants more-often-than-not is the result of excessive feedings. Less is more. Hard tap water can also be a culprit, that's why I use RO.

Hb.. When u ran gh@550 what ratio ml per ect did u use? Or did u mix standard bloom 5-10-15 and dilute it?what scale.5 ect?

I fed the plants what they needed and never followed a schedule or ratio or someone's feeding chart. I observe 3 phases of flowering and tailored my ratios accordingly. Grow and micro for veg, bloom and micro for flower, this is hydro btw. Are you asking how many mls/gallon I used to get to 550ppm/1.1EC?

 

[OSBC]

Yes what ml's per gal veg and flower of gh did u use to get 1.1 ec? U run this in promix? Or hydro? I also run nft 3 part gh + liquid karma+sweet and silica at 1000 to 1250@.5 that works..

I do agree w ur statement bout over feeding I figure the 700ppm gh would wrk on a feed water feed in flower I kno two feeds one water doesn't.. Just flipped a new room tonight I'm going back to 5-10-15 feed water water feed.. Gh is salty tho I agree at half strength last run Wk 4 I had 3000 ppm runoff

 

[Homebrewer]

Yes what ml's per gal veg and flower of gh did u use to get 1.1 ec? U run this in promix? Or hydro? I also run nft 3 part gh + liquid karma+sweet and silica at 1000 to 1250@.5 that works..

In veg with promix, something like 2mls of grow and micro per gallon should be all you need. For flower, 3mls micro and 5mls bloom per gallon should work well. Feed at every watering or with GH, you may need to leach salts once per week or so meaning feed, feed, water.

Hydro: 3mls of grow and micro per gallon for veg. Flower; 5mls micro and 11 bloom per gallon. Ditch the karma and sweet. LK is a dirty mess in hydro and sweet isn't needed. I do like silica products though.

 

[OSBC]

What kind of yield did u achieve w those runs?