PH not steady

HempyBabe99

HempyBabe99

Member
I have noticed when adding PH down to my nutrient mix that the PH will change if let it sit overnight. I normally PH down to 5.9/6.0 for hempy buckets and then feed no waiting. I had a little solution left over from a feeding from yesterday that I PH'd down to 6.0. Today, tested the PH and it was up to 6.6 - what gives? I have never had a problem before but am wondering if I should wait until the solution stabilizes at 6.0 for a few days before using it? Anybody?
 
twentyeight.threefive

twentyeight.threefive

Well-Known Member
HempyBabe99 said:
I have noticed when adding PH down to my nutrient mix that the PH will change if let it sit overnight. I normally PH down to 5.9/6.0 for hempy buckets and then feed no waiting. I had a little solution left over from a feeding from yesterday that I PH'd down to 6.0. Today, tested the PH and it was up to 6.6 - what gives? I have never had a problem before but am wondering if I should wait until the solution stabilizes at 6.0 for a few days before using it? Anybody?
Click to expand...
pH again before each feed. Mine raises daily.
 
curious2garden

curious2garden

Well-Known Mod
Staff member
HempyBabe99 said:
I have noticed when adding PH down to my nutrient mix that the PH will change if let it sit overnight. I normally PH down to 5.9/6.0 for hempy buckets and then feed no waiting. I had a little solution left over from a feeding from yesterday that I PH'd down to 6.0. Today, tested the PH and it was up to 6.6 - what gives? I have never had a problem before but am wondering if I should wait until the solution stabilizes at 6.0 for a few days before using it? Anybody?
Click to expand...
As @furnz said it's the carbonates in your water. These blow off in the largest amounts over the first 24 hours. After that your res should be relatively stable. For example with my tap water around 250 PPM I'll rise .3-.5 over 24 hours. After that I'll rise between .2-.3 over a week unless I have something wrong.

Hth
 
W

WhattTimeisit

Active Member
hi i have the a problem with my ph, i'm growing in pots outside, i use my aqua tonic machine to ph my water to 7 netrual, than i and my feed and ph down my water to around 6.5, but when i water my pot th ph and up at 7, i'm using potting mix for soil, so i add some soil ph down to help but ph still at 7, also the strange thing is if i use my tap water my plants seem to look more healthier, do yall think the aqua tonic water is bad? or is it the tap given my plant more iron nuturtion? i do notice as the pot dry to moisture the ph gose down a little, so anybody can help me on this thank you
 
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