PH Question!

Guys I grow with soil mixed with perlite about 50/50 and I always maintain the ph level @ 6.5-6.8 so I am in a good zone,but my question is why is the ph water that is coming out of the pot that I watered shoot down way below 6.0?
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I will use perfect ph balance water but the run off shoots down way below the 6.0 mark,why is this? of course it's probably because all the excess salts and unused nutes in the soil may be causeing the ph to go down so does this also mean that once the balanced ph water enters into the soil does it begin to go down ,right away! to a low ph below the 6.0 mark? or do you think im o'k!............

I even done a little test I flushed one plant completely with balanced ph @6.5 I gave it a complete flush for several minutes and no way could I get the run off water to balance out to 6.5 it always drops way below 6.0?....then I began to wonder just say if I balanced the ph level say 7.1 then flushed the plant would the run off water then balance out to a possible 6.5?..............

The point I am trying to make if I water my plants with balanced ph @6.5 and the run off is below 6.0 does that also mean the balanced water that is now in the soil is actually no longer balanced @ 6.5????.............any takes on this?

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Originally Posted by Mellow Man

any takes on this?

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I guess that the soil is taking 'stuff' up, so that's the pH difference.

Inside the soil, I guess you're going to find everything... from 6.5, all the way to 6.0. I think you're fine... think, key word.

Best,

-turtle420 :cool:

PS: I just had to post on this thread... 3 views, 0 replies, 5 stars.

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Originally Posted by Mellow Man

Guys I grow with soil mixed with perlite about 50/50 and I always maintain the ph level @ 6.5-6.8 so I am in a good zone,but my question is why is the ph water that is coming out of the pot that I watered shoot down way below 6.0?
..

I will use perfect ph balance water but the run off shoots down way below the 6.0 mark,why is this? of course it's probably because all the excess salts and unused nutes in the soil may be causeing the ph to go down so does this also mean that once the balanced ph water enters into the soil does it begin to go down ,right away! to a low ph below the 6.0 mark? or do you think im o'k!............

I even done a little test I flushed one plant completely with balanced ph @6.5 I gave it a complete flush for several minutes and no way could I get the run off water to balance out to 6.5 it always drops way below 6.0?....then I began to wonder just say if I balanced the ph level say 7.1 then flushed the plant would the run off water then balance out to a possible 6.5?..............

The point I am trying to make if I water my plants with balanced ph @6.5 and the run off is below 6.0 does that also mean the balanced water that is now in the soil is actually no longer balanced @ 6.5????.............any takes on this?

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If your plants are healthy and fluorishing, well, it is hard to change something, but if you are shooting for, balancing your run-off ph; Here is an answer to your query, I believe that your idea is correct. You should raise the ph level of your mix before watering and that would equate to higher run-off/ph...Now, I hate to admit it, but I mix my pot-tea
ph it and pour it in...I never check my run-off/ph...maybe I should, but I just like the way the orchid mix based medium I blend is real ph stable...lw :smokin:

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Originally Posted by latewood

If your plants are healthy and fluorishing, well, it is hard to change something, but if you are shooting for, balancing your run-off ph; Here is an answer to your query, I believe that your idea is correct. You should raise the ph level of your mix before watering and that would equate to higher run-off/ph...Now, I hate to admit it, but I mix my pot-tea
ph it and pour it in...I never check my run-off/ph...maybe I should, but I just like the way the orchid mix based medium I blend is real ph stable...lw :smokin:

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Yes sad but true I do have a ph problem! I will post pics as soon as possible,first I thought it was a magnesium problem so I feed the plants ebson salt as well increased some (n) to help restore the healthy green colour,now I didn't go heavy on the (N) feeding because I am well into my 3rd week of flowering!.......I also have been giving the plants carbo load as well as big bud nutes along with a b sensi bloom....but I have no indicators showing me a nute problem or burn! so a week ago or more I gave some plant food high in N but not to much to see if the green could be restored because the yellowing is also effecting my new growth along with the old growth?....

So I am now wondering maybe I had no N problem or magnesium problem to begin with? perhaps it was my ph balanced water @6.5? which infact probably becomes less then 6.0 the instant the water soaks into the soil? which would mean it's still a ph problem rather then anything else that I already listed?............. so what am I to do? hmm...........well like I said it's starting to effect the new growth as well and with the nutes that I am giving the plants they should be getting all they need,so my next solution to the problem is perhaps raise the ph in the water before watering the plants but the question now would be how high to go on the PH to balance the run off @ 6.5?.............I'll post pics as soon as I get some new batterys.

well if I have 5.8 or less and want 6.5 and then my way of thinking would be add 7.0 water which won't hurt your soil plants anyway...and take a readingyour new reading in my estimation should be 3-5 points higher than before add up/down accordingly to get to 6.5...or you can split the difference. i.e.you want 6.5 and your getting well under 6...let's make that # 5.8 for this example. since 5.8 is -.7 below desired ph...then add mix ph at +.7 or 7.2...the best way to know for sure in the future is to go for it...one way or the other, and learn.
another note is that too much water can lead to yellow leaves eventually, after they droop...but you should've noticed this...try feeding your plants equal n p k for a week and see if the new growth starts greening up...the old growth probalbly will not come back and watch for it to fall off...

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Originally Posted by latewood

well if I have 5.8 or less and want 6.5 and then my way of thinking would be add 7.0 water which won't hurt your soil plants anyway...and take a readingyour new reading in my estimation should be 3-5 points higher than before add up/down accordingly to get to 6.5...or you can split the difference. i.e.you want 6.5 and your getting well under 6...let's make that # 5.8 for this example. since 5.8 is -.7 below desired ph...then add mix ph at +.7 or 7.2...the best way to know for sure in the future is to go for it...one way or the other, and learn.
another note is that too much water can lead to yellow leaves eventually, after they droop...but you should've noticed this...try feeding your plants equal n p k for a week and see if the new growth starts greening up...the old growth probalbly will not come back and watch for it to fall off...

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Thanks man! I just brought my ph up to 7.2 and took another plant and flushed her with the 7.2 water and the run off water was still around 6.0? lol weird!...I 'll keep trying a few different things man o man this grow was my best one to date had the advance nutes going and everything started with bud blood followed everything to the T and seems the grow is starting to go down hill! I noticed the plants were beginning to show some really robust growth the nutes seem to work great! results were looking really good now this!....damn it lol...

First allow me to say! the ph problem in the soil may be corrected! but at what exspense? I first brought the ph up to 7.2 and add the water to the plant then checked the run off from the plants and it was 6.0 -6.1 and that was @ ph added water at 7.2 so inorder for me to balance the run off water to a 6.5 or so I would have to bring the ph up to over 8.0 or so and guess what? I did lol,note used just one plant to test....I brought the ph up to 8.0 and flushed the plant with 8.0 ph and the run off from the plant was 6.6 so now my question is would 8.0 ph hurt the plants but take note the ph drops to 6.6 as soon as the water runs fromthe bottom of the plant!...........any thoughts? is 8.0 way to high or is this fine to do to correct the ph in the soil?

Interesting topic. :thumbsup:
From what I understand, pH 8.0 may cause nutrient-lock. Please let us know what is going on with your plant. Thanks for sharing.

mellow... refresh my memory...what week are you in? what are you growing in? are these KK's beans? lw

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Originally Posted by latewood

mellow... refresh my memory...what week are you in? what are you growing in? are these KK's beans? lw

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I am almost 4 weeks into flowering,I am using shultz potting mix perlite 50/50. 1 gallon pots lots of aeratation temps in grow room reach 82degree's at most when lights are on! temps drop to about 74d 72d when lights go out,flowering with 2 1000w hortilux hps bulbs.........Nute program!...first week bud blood -sensi A sensi B......,also carbo load,voodoo juice,big bud..all light feeding schedule first time advance nute user didn't want to over do it!

The plants in question are not kk's beans the 5 strains I got from kk are now vegging! from seed for the last week or so!.

The plants that have dipped towards the down side are strains continued from clones I cut,fruit punch,Blueberry,Ultra black cambodian,,,,,

I allowed 6 weeks of vegging before flower cycle and since the flowering cycle they have taken a downward spiral!

it's producing bud at a good rate better then any of my previouse grows but seems to be yellow in the fan leaves as well as new growth! .................What caused me to even come to deep thinking in the PH level was because for weeks into the flowering stage I never checked the run off from the plants but always introduced clean balanced ph of 6.5 water even when I added my nute program,i would first balance the ph,add nutes then balance again .....so anyhow after three weeks or more of 6.5 ph water given to the plants I thought everything was going great then the yellow started showing,I then flushed with ph 6.5 balanced water thinking might be nute problem but wasn't,continued with nutes once again,with 6.5.still yellowing getting worse! during this time,I added epson salt 1 spoon full per gallon of water balanced ph 6.5 still yellowing mg problem can't be I even gave the plants last week a shot of peters 20-20-20 to increase the N and see if my plant could start going green again,nope
So today I said what the hell could be the problem ,,,,,,,,,,,,,,,,

So out of curiousity I said just for fun I will check to see what the 6.5 ph would read from the run off of water after I run the water through the soil,wow it read less then 6.0 ,I even questioned it and tryed it again still less then 6.0 ph in the run off? so I tryed a ph of 7.2 checked the run off it was 6.0 6.1,so just for the hell of it I took one plant to exsperiement on and used a ph of 8.0 and then check the run off it was 6.5 6.6?????? I knew clearly that 8.0 ph is not good for my plants lol but I tryed anyhow and now the run off is @ 6.5 6.6? and the thing is I don't have to wait aong time for the 6.5 to drop to a 6.0 or less it happens imedetly which means the soil is proably 6.0 or less.......................so maybe this 8.0 won't hurt the plants if it's turned into 6.5 in the matter of seconds?...............either way this got me down a bit man this was the best grow for me by far but may end up being my worse grow if I don't get a handle on the problem now?.........by the way thanks late wood and others for helping me out....much appreciated!