I had the same problem when I started adding more nutes to my res...the ph would drop initially and then slowly climb...the more nutes the more significant I noticed both of these issues to be...you might be right about the extra waste but the ph should definately level off to a much slower climb...I can't remember how many gal is your res and how many plants you have runnin through?

Once your feeding them full strength half way through flower the climb will definately be quicker so ya might be able to freeze some and dump it in the res in the morning and make fine tuning just at night...

Let me know if ya notice this to be true cause if not it would be good to know it atleast wasn't all of my problem either...so far I'm at 6 weeks and they're not even close to a foot yet but even though I've made tons of mistakes they're still kickin
alwayssleepdeprived Reviewed by alwayssleepdeprived on . Wide PH fluctuations Never had this problem before...ill ph down to 5.6 then 12 hrs later its at 6.1 or 6.2. Its like the water lost its buffering capabilities. It has only been 1 week since res change in a 15 gal DWC for 2 plants. Whats the deal? Iv added quite a bit of PH down for 3 days now and its the same deal. I pumped out 4 gals and replaced it with 3 gal RO 1 gal tap...im thinking it has something to do with the salt build up so let me know. I also used molasses...I recall another grower having the Rating: 5