Grow Mediums WILMA - confused help!!!

[BigAz]

@Wile e Peyote yea it usually drifts up a bit but 1.7 to 2.2 is about 250ppm on my ppm500 scale thats a bit of a big jump.
Unless im converting it wrong.
I just top up with plain water when it jumps up too much

I'm using 60/40 pebbles coco

 

[woody]

Last time i ran 2 sour blues and two cheese xxl in a wilma and the sbs were ready earlier. I put plain water in the res for a quick 3 day flush then put nutes back in for the cheese to go another week or 2.
But if i was doing it again i would just let the first plant go a little longer.
Have you tried just topping up with ph'd water to bring the ec back down. If it keeps rising you'll start to see some burning

 

[woody]

I run the gh 3 part nutes as well dude. How much grow micro bloom per litre are you using atm?
I used carboload and overdrive in flower for the last grow too.

 

[BigAz]

I run the gh 3 part nutes as well dude. How much grow micro bloom per litre are you using atm?
I used carboload and overdrive in flower for the last grow too.

Micro 1ml/litre. Grow 0.3ml/litre/bloom 1.65/litre. Overdrive and candy 2ml/litre. So in a 25 litre bucket with all that mixed my EC is around 1.35-1.4. I then add bloom and overdrive to get EC to around 1.7. Then over the next few days it rises to around 2.0-2.2

 

[woody]

Thats pretty much my week 8 schedule exactly 1ml micro 0.3 grow and 1.6 bloom!
If the ec is rising and ph is good theres only 1 reason and that is the plant is just not absorbing all the nutrients from the water as it passes over the roots. So the water that goes back into the res is slightly stronger each time. Making the ec of the res rise.
Only thing i can think to do is dump the res and make a fresh one as the longer it goes the more salt build up there will be.
Do you dump res and clean out the system often or just top up with fresh buckets?

 

[BigAz]

Thats pretty much my week 8 schedule exactly 1ml micro 0.3 grow and 1.6 bloom!
If the ec is rising and ph is good theres only 1 reason and that is the plant is just not absorbing all the nutrients from the water as it passes over the roots. So the water that goes back into the res is slightly stronger each time. Making the ec of the res rise.
Only thing i can think to do is dump the res and make a fresh one as the longer it goes the more salt build up there will be.
Do you dump res and clean out the system often or just top up with fresh buckets?

I change res once a week. So have I got nute block and how could this of happened

 

[woody]

The only other thing i can think of is salt build up in the coco- i grow in straight clay pebbles.
Maybe as the feeders kick on theyre washing built up salts into the res.
You could try taking the pots out and give them a flush with ph water. While theyre draining make up a fresh res and go from there mate

 

[BigAz]

The only other thing i can think of is salt build up in the coco- i grow in straight clay pebbles.
Maybe as the feeders kick on theyre washing built up salts into the res.
You could try taking the pots out and give them a flush with ph water. While theyre draining make up a fresh res and go from there mate

I've got 2 Scrog nets in at different heights that all 4 have grown through so can take them out. Any other options???

 

[woody]

Only other option then is empty the tank and flush with plain water where they sit. Let it run through the pots into the empty res. Then pump it from the res into buckets and throw out. Repeat for all 4 pots. Then mix up a fresh res with nutes and go back to normal feeds

 

[BigAz]

Only other option then is empty the tank and flush with plain water where they sit. Let it run through the pots into the empty res. Then pump it from the res into buckets and throw out. Repeat for all 4 pots. Then mix up a fresh res with nutes and go back to normal feeds

Would flushing each 25litre pot with 25litres of ph'd water be enough? @sanguine