I'm thinking Nitrogen Def and maybe over watering?

[420ReBeLGrower]

About to do my flush and was wondering if there is a specific PPM I should have my flush water at? I know I should flush with about 6.6 pH'd water just didn't know if the ppk matters for the flush?

 

[420ReBeLGrower]

So, gave them all a flush of around 2.5 gallons of water.

Water
pH: 6.6
Ppm: 220

After flush, the collected water showed..

pH: 6.8
Ppm: 640

 

[BurnzYzBudZz]

So, gave them all a flush of around 2.5 gallons of water.

Water
pH: 6.6
Ppm: 220

After flush, the collected water showed..

pH: 6.8
Ppm: 640

Soil pH needs to come down to about 6-6.2. And the ppm indicates a slight build
Up of salts which may lead to future lockouts. I don’t know how others do it, but when my soil pH was higher, I flushed with a lower pHed (6)/low ppm feed 250ppm(ish) 20% more than I’d normally water and I was able to stabilize my soil pH a bit. After that my soil pH was a constant 5.8-6 which was sufficient for my first grow. I had no signs of lockout, just a bit of heat stress. Wait for some other opinions first.
There may be better ways to bring the soil pH down and stabilize it better.
BurnZ

 

[420ReBeLGrower]

Soil pH needs to come down to about 6-6.2. And the ppm indicates a slight build
Up of salts which may lead to future lockouts. I don’t know how others do it, but when my soil pH was higher, I flushed with a lower pHed (6)/low ppm feed 250ppm(ish) 20% more than I’d normally water and I was able to stabilize my soil pH a bit. After that my soil pH was a constant 5.8-6 which was sufficient for my first grow. I had no signs of lockout, just a bit of heat stress. Wait for some other opinions first.
There may be better ways to bring the soil pH down and stabilize it better.
BurnZ

With the flush I just did, should I flush again with lower ph and ppm water at next feeding, or should I go back to nutes? I want to get the PH down lower (I figure if I flush with 6.0 it will bring it down to a lower level.)

 

[BurnzYzBudZz]

I’d let the soil dry out a bit before watering again.

 

[420ReBeLGrower]

I’d let the soil dry out a bit before watering again.

Oh, for sure! Want to let them dry out a bit before each watering. What do you think for next watering though? another jkust water flush or back to nutes again? I'm not a good judge of when they only have 2 weeks left so I don't know exactly when to only use water.

They look better already after the flush, but the leaves are still falling :-(...

 

[BurnzYzBudZz]

You’ve got a ways to go. Looks like they are bouncing back nicely. Water again with the pHed water next time. Try and get the pH down a bit, then feed light the following watering.

 

[420ReBeLGrower]

I'll water again when dry with only lower PH and ppm water. Should be in about 4 days or so. I'll flush with 6.0 and lower ppm (like 100 or so).

How much longer you think I got? I figured another 3 weeks before harvest. They are day 43 or 44 of flower.