I purchase the Jack’s 321 the mixing ratio is as follows By weight (add to one gallon of water):
Weigh and completely dissolve 3 grams Jacks 5-12-26
Weigh and completely dissolve 1 grams Magnesium Sulfate
Weigh and completely dissolve 2 grams Jacks Calcium Nitrate 15.5-0-0
I I calculated that for 36 gals of water.
Jack’s (A) 3/4 cup
Jack’s (B) 1/2 cup
And (C) Epsom salts 1/4 cup, this is just by about 3 tbsp
Is this right? For 36 gals of water.
1st weight Jack’s (A)
2nd weight Epsom salt
3rd weight Jack’s (B)
I’m just in the process of putting together a rdwc 3- 13 gal system , 2 grow buckets 1 Reservoir.
And wanting to get all the information I can prior to set up. Around late March- April. After I finished my soil grow.
The system is 3/4" top waterfall, 3" PVC return
400 gal water pump, Simple Deluxe LGPUMPAIR38 602 GPH 18W 38L/min 6 Outlets, and . Poafamx Aquarium Chiller 42Gal Fish Tank Water Cooling System So it could be more gals then I’m thinking. Stimpy you idiot!!! @peachfuzz@neofirebird
Hello mate, I was following but now I’m not for some reason. I will have a look further up . Ah ha, new post that’s why it didn’t flag up. I’ve never done rdwc before
Looking at those figures it looks to me like a cup of part A,
2/3 of a cup for part B
and I’m assuming 1/3 if a cup of Epsom salts. It seems to me to be a third thing going on here @Ashleyroachclip. I have never used Jack’s though
Cups are a unit of volume. Grams are a unit of weight. Ounces are confusing because the word refers to both weight and volume, but they are not the same.
I have found that really small volumetric quantities of Jack’s weight significant amounts, and I would measure by weight every single time I prepared a new reservoir.
If you have three 13 gal square buckets, you’ll probably only hold (about) 10 gal each, maybe. By the time you drop your net pot, you might end up with 22-28 gal total. That’s just a rough guesstimate.
I’m sure someone here uses them and can tell you exactly.
Then you have to calculate the amount of loss when your roots get big. Maybe then 7 gal each.
I use 321 also. I go with exactly the way they say to mix it on their website. Like @KeystoneCops said stick to weight.
I’ll be watching.
@Ashleyroachclip if I was to listen to anyone I would listen to @KeystoneCops. He really does know his stuff.
Don’t want to offend anyone but his knowledge is really up there