Hey guys I know this is probably a dumb question but does the pH of R/O water rise as it sits out over a few days as do other waters? I'm curious as to if i should worry about that happening or not.

Help is very much appreciated, Thanks! :i feel stupid:
Shamrock36 Reviewed by Shamrock36 on . Need help with rising Ph....! I've got a bit of a dilemma...! I now have 12 plants in bloom, 3 sets of 4, spaced out by 1 week. My problem is rising Ph. My water that comes into the grow area goes thru a cylindrical water filter, one you use for water going to a refrigerator. From there it goes to a 50 gallon reservior that is aerated and constantly moving. The water comes in at 7.8-8.0 Ph and 80-180ppm. I'm using GH FloraNova products that after mixing brings that water to 5.8-6.0 Ph and 1200-1400ppm. I run the pump for 15 Rating: 5