Quote Originally Posted by PharmaCan
Welllll - what are you going to do when you adjust your pH and use too much down and need to get the pH back up? :wtf:

The nutrients we use tend to be acidic, which, of course, lowers pH. If you start with r/o water, or water that has a low pH to begin with because of something in it that is buffering the pH down, the solution pH may be too low and need the up.

PC :smokin:
What i've been doing is just using a water source that has a PH of 8.0-9.0 to add to the water if i adjust the PH too low... I'm not sure if its a good idea though..