No matter what I do the ph in my 1 DWC rez is 6.3

JMedi420

JMedi420

Active Member
Meast21 said:
Title says it all and this never happened to me before. I've underfeed the plant or overfeed the plant a little in DWC and the rez is stuck at 6.3ph. I will use ph down to get it to 5.5-5.8 range and the next day its up to 6.3 again. What's going on?? On day 18 of flower, its been doing this since day 1 of flower.
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IF the PH rises that means your Plants are intaking Nutes that is a good thing just stay on top of your res and keep it between 5.5-6.1
 
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Richalpha

Well-Known Member
Sounds like you're battling with the buffers in your tap water. Switch to RO or stop worrying about it. (You are still in range, alot of nutrient lines advise not to adjust the ph if its in between 5.5-6.5 )
 
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Mathiaus420

Member
Meast21 said:
Title says it all and this never happened to me before. I've underfeed the plant or overfeed the plant a little in DWC and the rez is stuck at 6.3ph. I will use ph down to get it to 5.5-5.8 range and the next day its up to 6.3 again. What's going on?? On day 18 of flower, its been doing this since day 1 of flower.
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Sounds to me like ya plants are happy at that ph. If there not showing any issues. Leave em be but monitor em. I having a similar issue at minute. My ph just won't stop dropping. 6.0 every morning . Next morning 5.7. Rest rinse repeat ph issue again. But ec is also going down too, and my understanding so long as ec is going down and ph is rises shits good.anything different not so good, but this time and last grow same issues and results last time was fairly good. And this time time with a tweak or two and a co2 bag, things have been kinda mind-blowing. But with same ph issue.
 
Blue brother

Blue brother

Well-Known Member
No matter the size of the res id allways let it go from 5.5-6.5, the larger res just means it happens slower. Personally I would never add any stabilisers or ph down to an active res. Yes I would add what ph down I needed to set the res at 5.5 but would only let it swing once per change. Get yourself a bigger res, and this might take a week, get a gigantic res and you’re good for 2+ weeks.
 
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Meast21

Well-Known Member
PJ Diaz said:
I'd be willing to bet that the issues is that you are using tap water, which has a high carbonate content and is buffering the ph, causing it to rise. Switch to RO, and this will likely resolve.
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Still doing this although not as bad as before were plants were dying. Why would I be having problems with my tap water all of a sudden for the last 2 months?? Its city tap water with a ph of 7.4 and a ppm of 160. I lived in the same house for 7 years and no problems.
 
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Meast21

Well-Known Member
rootforme said:
I really wouldn't be disappointed with a constant swing that stops at 6.3 ph. 6.3 is still in the ideal range for your res.
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My plants got lock out and stopped drinking. I cleaned everything and started over now its doing it again.... Could the ph have gone bad? But I will set the ph back down to 5.8 to 6.3 and the next day 6.3 again.... Here are pics from today. The previous plants 3 weeks ago all stopped drinking water and wilted and main stems got purple. I cleaned everything and started over... Its the ph that keeps rising to 6.3-6.4 range and then plant doesn't drink.
 

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Meast21

Well-Known Member
Could someone explain EC to me to? How do you fix EC if something is wrong? Like I said city tap water is 7.4 ph and 160ppm out of the faucet. No problems first 7 years I lived here. My plants in DDW like ppm around 900.
 
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