The only solubility problem I see would be with the Potassium Nitrate and it would probably only be an issue with a concentrate of around 600X or more. Still I should split the Potassium Nitrate between parts A and Parts B at a concentration of 100X so as to get the EC of Part A close to the EC of Part B (Hydrobuddy software results do not show this split of the Potassium Nitrate between Part A and Part B).
I use source water at zero ppm and would add the required amount sodium of sodium phosphate to bring the source water to 40 ppm. This water will be added to the diluted nutrient reservoir when ever 1.25 to 2.0 gallons of the diluted reservoir has been used. A Masterflex C/L running two tubes will add both Part A and Part B at the same time very slowly from the concentrate reservoirs. The entry points into the diluted 35 gallon nutrient reservoirs are opposite sides of the reservoir tank. The tank is conical. It is kept aerated with two submersible pumps located just behind the concentrated nutrient entry points. One pumps discharge is pointed downward and the other horizontal and just below the surface. The Masterflex C/L pump dispenses the concentrated Part A and Part B each at only 0.25 ml per minute so there has never been a precipitation issue even using 500X concentrates.
The addition of the nutrients by the C/L pump is controlled by an Oakton EC analyzer. I would use the same type analyzer for maintaining the EC of the source water with potassium silicate pumped with a single tube C/L pump at a rate of 0.5 ml per minute. The source water tank is kept filled by a L/S Masterflex pump activated by a Crouzet Pump Down Relay controller and that water is pumped to the reservoir tank by a L/S Masterflex pump activated by another Crouzet Pump Down Relay controller. The pH of the diluted nutrient reservoir can be controlled by a Hach pH analyzer and two C/L pumps with single tubes pumped at 0.05 ml per minute. I have never had to use pH adjustment however as in the past my nutrients in a diluted form have nearly always run between 5.6 and 5.8 as the nutrient system is DTW. I don't mind a bit higher pH but I do not want a lower pH. Nothing better than automation except over zealous dedication of time to a grows daily operation. I just don't have that much time to dedicate to daily operations. That and I am too old and tired to carry around all the water even if I could devote that much time to do everything manually.
I do not have ready access to Peters Pro Hydro-sol where I live so I would not be adding it to the substances list so my finished weights will be different proportionally than yours but will provide the same ppms in the diluted product as yours mixed in a reservoir with 100 liters of water.
One thing of note though. My not using Peter's Hydro-Sol or the epson salts used by you but instead using common magnesium sulfate gave me a sulfur ppm of only 56.9
hey spurr...old school 100 100 200 grower here. but with an open mind
150 50 200 is my new goal,unused yet
the six pack refers to the five common salts plus micro package available at many hydro stores in .ca and no havenot tried the mix...the 4 part spurr full meal deal including the DAP,CAN,MgNO3 is next
last time I had not calc the ppm of my PK spike ,and I hit ec2.7 for 24 hrs 3 times over a 15 day period ...had to be 500 ppm K
last was a bumper crop
enjoy reading your posts and folowing the various links daily
old nute calc
...poipu
poipu, are you saying you fed upwards of 500 ppm K for an entire day, three different times? And you believe this resulted in a noticeable increase in yield? What part of the flower cycle was this 15 day period? What was your source of K?last time I had not calc the ppm of my PK spike ,and I hit ec2.7 for 24 hrs 3 times over a 15 day period ...had to be 500 ppm K
last was a bumper crop
hey dgr... yes, yes, day 18,25,and 32 of 12/12poipu, are you saying you fed upwards of 500 ppm K for an entire day, three different times? And you believe this resulted in a noticeable increase in yie
ld? What part of the flower cycle was this 15 day period? What was your source of K?
Thank you
@ 1971,
I like using screen shots because I think they are more readable and legible to people, myself included. I can pack in many more data in a screen shot, and still make it legible (ex., spreadsheet), than in a post; ex., by use of tables, graphs, etc.
Here is the same mix as above, but it's made for direct addition to 100 liters, not shown is boric acid at 0.095 grams:
hiya, Ah man it sucks that this thread is dying ! was enjoying it so so much , realy learned alot in here ! thanks Spurr and others , realy sad that Spurr is not posting anymore ( man u are a information central dude haha).. Thanks for all the info Spurr , your posts are very good and has inspired me a great deal . thanks!