Grow Mediums DIY Auto feeding system to control ppm and ph

[Muddy]

ahh, see mate this is why i ask silly questions. some very sensible responses there thanks for that : ) i actually came across someone using something similar the other day and all i could say was WOW!. it shut me right up lol. poor guys tent was about to burst. thats some impressive stats with the nutrients aswell. i thought itd just be guzzln gallons of the stuff. your last point there though is something ive been trying to find out for aaaages! that nobody seems to know. 0.75 litre air per gallon per minuit. is that for that system or a generalisation for most hydro methods? got a 10L dwc that will be 20L soon so been trying to find out what the optimum range is for it. most say more is better but im sceptical

Sorry to be so long getting back to you. A power surge took out most of my home network, including my PC. I'm just getting back up and running again.

I'm here to help if I can, but thanks, I appreciate that. These systems are so efficient in making nutrients available to the roots that you don't need to go overboard. I made that mistake in the beginning and had all kinds of issues trying to follow the published feeding charts. I've also gotten better at reading the plants and knowing what they need and when. Very different than soil growing. That .75 liters on the air is what CC recommends for their systems but I don't see why it couldn't serve as a basic guideline for any similar system. What's you total liters going to be? CC doesn't recommend going over 1.5 and considers anything between 1.0 and 1.5 to be 'super charged'. They have a separate feeding chart for super charged systems as they require less nutrients. I'm sure there is a reason they don't recommend going higher but I don't know what it is.

 

[DIY DAN]

I would save up and buy proper lab equipment.

BlueLab pH control or the one that combines pH and EC

If the latter is too much you can save by buying TDS controller from Hanna Instruments (0-1999ppm one with overdose protection)

 

[puggle6]

Not the same but here is how I roll

https://www.autoflower.org/threads/f6s-ultimate-hydro.61348/

I plan to add some more automation but the above system really produces lol

f6

 

[KsjAuto]

I have build fully automated reservoir (550L) systems.
Automated nute doser
Automated pH
Dump and refill resovoir e.t.c.
I still do custom builds [emoji106]
Spent 3 years collection data, To work out algorithm for ppm.
You can do all the math you want. If your res.. is depleted of cal an ore mag and you dose pH up ore down. From the calculation you think work. you will surely fuck up.
In a perfect world you can dose up ore down ppm and pH,With a controller bucket.But then we are talking clones and photo plants and some bad ass skills.
It's not impossible but take a lot of effort.
Just my 2
Sorry for the rant.
Oh bluelab have A nice controller. with there added 3 peristaltic pumps.
But can only do fixed ppm. So what happens In preflower stretch when she starts drinking alot of nutes. Fixed ppm lol.
Good luck and stay green. With time and effort everything is possible
[emoji106]



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