Quote Originally Posted by GetThisOrDie
You should be able to correct it with a good flush with the proper ph water. You can also continue to water/feed at an adjusted ph until the runoff is correct. Then proceed to use corrected water again.

Make sense?

Here is a sticky which the topic is explained more by someone with much more experience than me.

http://boards.cannabis.com/plant-pro...hy-how-do.html


I asked your soil type because some commercially available soils use certain ingredients that can gradually change the PH over time. Like pine bark chips.
Read the first few posts there,... good info! :thumbsup:

I'm gonna have to set some time aside to read the rest of that thread, ATM I'm not so concerned with outbound (runoff) PH as it doesn't seem a very accurate measurement.

Just my :glugglug: $.02
canniwhatsis Reviewed by canniwhatsis on . Correct pH for soil... If your soil is either acid or alkaline, would you need to adjust your water/nute pH accordingly? For instance, my girls are suffering from lockout due to soil being slightly alkaline. In order for my runoff to come out at a pH of 6.5, I had to flush with plain water pH'd at 5.1. My question is, should I always feed/water with a pH of 5.1(+/- depending to run off)? Or do I continue to feed/water with a pH of 6.3-6.7? The goal is to have a soil runoff pH of 6.5 correct? I was Rating: 5