MY RUNOFF IS COMING OUT TO 3000 PPM FOR MY SEEDLINGS

Massgrower98

Active Member
First time checking the runoff with a ppm meter and the ppm is almost 3000 for my 1 week old cannabis seedlings ... how do I change the ppm? And what's the best ppm for cannabis seedlings ?
 

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Yes I use filtered tap water and my ppms right out of the tap just clean water is 170 ppm but when I checked the run off for my seedlings it was 4000
 
Thats pretty crazy..
Try taking a solo cup full of your medium and soak (plain water) it till you can get a good sample to test . See what you get.
Is it a new pen?
 
Yes I use filtered tap water and my ppms right out of the tap just clean water is 170 ppm but when I checked the run off for my seedlings it was 4000
Something is wrong with your batch of soil. I’ll step back and let the soil experts take this one in hand.
 
Thats pretty crazy..
Try taking a solo cup full of your medium and soak (plain water) it till you can get a good sample to test . See what you get.
Is it a new pen?
Yes it is new pen that ive already calibrated hanna gro line tds/ec/ppm pen. And ok I just scooped up some of the soil and put it in a small solo cup I'm about to check the runoff and I'll send you a picture of what it shows ...
 
Thats pretty crazy..
Try taking a solo cup full of your medium and soak (plain water) it till you can get a good sample to test . See what you get.
Is it a new pen?
just took a small amount of soil from the pots the seedlings were in and heres the runoff
 

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Right on, you’re getting there. Do you have a ph reading on your run off.
If not, maybe take one and see what you get.
 
Right on, you’re getting there. Do you have a ph reading on your run off.
If not, maybe take one and see what you get.
Heres my ph straight of the tap , and heres the ph of the runoff.... also when I first watered the plants the ph was 6.0 5.8 but now it reads 6.5 to 6.8 when I first checked the runoff it was 6.5 - 6.4
 

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Not a soil expert by any means but I get some pretty high numbers from my soil. Here’s what I’ve found. If your tap water ph is high it won’t hurt too much. Just try to water as few times as possible. Letting it dry out good before watering again.

When I tried lowering my ph of my tap water to 6.5 it was killing my seedlings. Soon as I stopped adjusting it things were fine. It comes out of my tap around 8-9.
 
Not a soil expert by any means but I get some pretty high numbers from my soil. Here’s what I’ve found. If your tap water ph is high it won’t hurt too much. Just try to water as few times as possible. Letting it dry out good before watering again.

When I tried lowering my ph of my tap water to 6.5 it was killing my seedlings. Soon as I stopped adjusting it things were fine. It comes out of my tap around 8-9.
Yeah everytime my water comes out the tap it's always around 7.0, I always use the liquid ph up & ph down to get it to 6.0 to 6.2. ... so your saying i should stop using the liquid ph up and down and let it dry out completely?
 
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