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Old 11-12-2007, 08:34 AM
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Default Ph Up & Down increase ppm?
I took my ppm's b4 adding ph up. it was 400ppm then I added the ph up to get the ph right and then took the ppm again. It was 900ppm afterwards! Is this normal or what's up?
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Old 11-12-2007, 07:36 PM
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i've never had that problem before butit is conceivable that u got a false reading if u were using powder ph up/down. did u use a powder or a liquid. also if u are using a bubbler i find that my tds meter will give false high readings if u are tds'ing over the top of the air stone. best bet when taking readings do it in a calm part of the res. also wait about 2 - 3 minutes after u add ur up and down. hope this helps.
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Old 11-13-2007, 06:43 AM
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Thanks a lot monkey, I am using powder ph up and down...is this not a good thing to do? Thanks 4 the help.
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Old 11-13-2007, 10:37 PM
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no powder is cool but is it a hydroponic ph or a swimming pool ph. swimming pool ph isnot the same and should only be used in on emergency basis. if it is a hydro powder ph then get ursef 2 gallons of distilled water and and putit in a dark container and keep it cold so it wont develop mold. add some ph up to one gallon and ph down to theother gallon. now when u need to adjust it will already be liquid and wont affect ur ppms. also it will be ez er to adjustbecause u already know the ph of the distilled water just adjust ur nute water by adding a lil bit at a time and voila. the next time u need to adjust ur ph a point or so u will know the exact amount to add. good luck bro.
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Old 11-14-2007, 06:47 AM
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K thanks a lot it is def pool ph up and down so I guess I'll head to the store and grab some real liquid stuff.
Thanks for looking out...love the pic by the way.
 

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