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Halo_budz

PPM Run Off

EC & PPM of run off is super high..so i have given 1 flush with Diluted nutes.

 

I am using Shogun and using A+B katana roots +Silicon + Calmag with ph down.

 

Nutes have been given between the ph range of 6.2 -5.8.... the ph of run of of plant 1 was 5.3 Mf the ec was super high.

 

The ph range of plant 2 was 5.5 and the ph range was super high.

 

My grow medium is coco tropical mix which contains 70% perlite.

 

I was originally going to run a drip to waste system. But ended up hand feeding.

 

What should I do to sort the ppm of run off?

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Do you mean ph & ec ppm? If your giving your plants a good run off every feed, the run off ec shouldn't be too high. Also what's your EC of the feed before you water? What stage are they. Depending on the stage of the plant will determine the EC. If the ec out is much lower than what is being put in, the plants are using the nutrient . If the ec is much higher, either the plants arent using it or the substrate is drying out too much in between feeds leaving behind a salt deposit which will push up the EC. I hand water to and its a bitch but i have run to waste trays so always strive for at least 15% run off. Im buying a  dripper addon to make a drip to waste system on my next grow.

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The Ecothrive Charge in it is probably causing some of the problem ie high ec, and too infrequent watering, maybe. Adding solid active ingredients (ecothrive) into a hydro situation, like coco/perlite, is going to complicate things. I'm guessing for the first few weeks one is not supposed to add anything until the nutes in it are exhausted.

Edited by catweazle1

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On 08/02/2021 at 10:09 AM, sweettooth said:

Do you mean ph & ec ppm? If your giving your plants a good run off every feed, the run off ec shouldn't be too high. Also what's your EC of the feed before you water? What stage are they. Depending on the stage of the plant will determine the EC. If the ec out is much lower than what is being put in, the plants are using the nutrient . If the ec is much higher, either the plants arent using it or the substrate is drying out too much in between feeds leaving behind a salt deposit which will push up the EC. I hand water to and its a bitch but i have run to waste trays so always strive for at least 15% run off. Im buying a  dripper addon to make a drip to waste system on my next grow.

 

Ladies have been in veg 12 weeks from seed and are now mothers to some fine little ladies. 

Will definitely be running the drip to waste next time around. They seem happy all the same. PPM when feeding is 800 with a ph range of 5.5 - 6.0. The run off ph on 1 was 5.5 and the other is 5.3.

 

Definitely leaving to long between feeds based on size ... so will be keeping an eye on medium.

 

Thanks 

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On 08/02/2021 at 10:09 AM, sweettooth said:

Do you mean ph & ec ppm? If your giving your plants a good run off every feed, the run off ec shouldn't be too high. Also what's your EC of the feed before you water? What stage are they. Depending on the stage of the plant will determine the EC. If the ec out is much lower than what is being put in, the plants are using the nutrient . If the ec is much higher, either the plants arent using it or the substrate is drying out too much in between feeds leaving behind a salt deposit which will push up the EC. I hand water to and its a bitch but i have run to waste trays so always strive for at least 15% run off. Im buying a  dripper addon to make a drip to waste system on my next grow.

@sweettooth I have my flexi tank at the ready... just need to figure out how to set this pump and pipes bit up. How you getting on?

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Forget about run off pH in coco - I'd even say forget about input pH as well, but if you want to check it going in then thats ok. Make sure its between 6.0 - 6.5 and if it falls between those figures forget about it.

 

As for your run off:

 

PPM going up, run off water volume going down - add more irrigations - pot is drying out between feeds and causing a concentration of salt in the medium

PPM going up, run off water volume stays the same - add less nutrients - plants are dashing the excess feed

PPM going down, run off water volume the same - add more feed.  - plants are consuming feed quicker than they are drinking

PPM stays the same, run off water volume is the same/adquate - you've nailed it dont change anything - plants are drinking and consuming at the same rate, perfection :yep:

 

Coco is easy, don't complicate it :yep:

 

 

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I'd personally never go back to hand watering coco, it needs to constantly moist or you'll end up with salt deposits backing up in the medium.

 

Keep flushing them with very week feed until it starts to drop, then going forward make sure it's constantly moist and go easy on the feed. You would be surprised how little nutrients they actually need- to give you an example I'm just finishing a run of Pine Tar Cheese which I've been feeding around 1.2EC (which is like 3/8th strength) and I've still got tip burn as I'm nearing the finish line.

Edited by BushDoctoR
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1 minute ago, BushDoctoR said:

I'd personally never go back to hand watering coco, it needs to constantly moist or you'll end up with salt deposits backing up in the medium.

 

If I had the choice I wouldn't hand water coco either lol ! It can be done without massive spikes of E.C in the medium but its difficult to get right the number of plants vs the size of pot vs the space vs the light. Too few plants and too little pots its impossible to water correctly, too many plants and too large pots and its a bud rot jungle! 

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