PH Drama

70's natureboy said:

You should check the EC. It sounds like the nutes are weak.

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grower112 said:

i dont know because with my current usage i end up with 0,5 l bottle for 1 grow if not even more .... i thought the 0,5 l bottle will last me more then 1 grow since all on videos warn how strong that ph down or up are ... i basically need everyday 35 - 40 ml to get my ph in range

got 18 - 20 liters of water in my rez

sry for liters im a european.

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hondagrower420 said:

I'm thinking the same. Low nutes/ low ec.

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heckler73 said:

Perhaps your pH down is diluted?
I use 1 drop per liter to bring my pH down from ~7.1 to ~6.2, then another drop per liter to bring it down to ~5.3. I bought mine as a "white label", though, not some name brand.
You need a better source, perhaps? Phosphoric acid...that's all it is.

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grower112 said:

i dont know really, but my ph strength is way way less then your's thats for sure i needed 60 drops for 1 liter water to get from 7,7 to 5.5 - 6

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grower112 said:

i dont know really, but my ph strength is way way less then your's thats for sure i needed 60 drops for 1 liter water to get from 7,7 to 5.5 - 6

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blackforest said:

I'm betting the ec out of the tap is pretty high for you. For me, 10g of ro water (38L) only takes 2ml of ph down to go from 8.0 to 5.5ph. If I have 10 non-ro gallons it takes a hell of a lot more to get to the same ph, and it's about 300ppm prior to running through the ro system. ebay ro filters are around $100 or so, and the one I have works great, has filtered A Lot of water and still reading 0-10ppm after all this time.

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