RO Water Filter Installation with pictures

LoudBlunts

Well-Known Member
and oh yea... i wont quote email.... but he informed me that you should never do a ph reading on the RO water.....it could possibly fuck something up!!!

but of course you ph your water after the nutes......

just some food for thought....you know when mother says the stove is hot...you should listen!!!!
 

mexiblunt

Well-Known Member
thanks but I don't do r/o yet and or don't have a meter. I will keep that in mind tho and would really like to here the quote too.:mrgreen:
 

LoudBlunts

Well-Known Member
LMAO.....regardless


i wish i could rep you...remind me! you've earned it

thanks for the info once again, the laughter, and for being all around cool
 

email468

Well-Known Member
thanks but I don't do r/o yet and or don't have a meter. I will keep that in mind tho and would really like to here the quote too.:mrgreen:
Here is Earl's response to my question: Why does RO water destroy your pH meter (if you want to read the post it is here: https://www.rollitup.org/hydroponics-aeroponics/57961-simple-ppm-question-3.html#post646230)
A pH probe is basically a sensitive voltmeter,
and converts the reading in mV that it gets,
into a digital number representing the pH.

A solution of neutral pH should have a mV reading of 0.0.

Two chemical solutions can have the same pH,
with one solution having a higher ionic value.

pH calibration solutions are made with High Ionic chemicals.

High Ionic solutions will cause the meter to react faster,
than low ionic solutions.

RO has little or no ions.

Two potentials are needed to make a pH measurement:

1. The sensing electrode provides a potential
proportional to the logarithm of the
hydrogen ion activity,
in your nutrient solution.

2. The electrode reference solution inside the probe,
ideally provides a stable and consistent ionic potential,
independent of your nutrient solution.

Comparing the ions in these two solutions
gives an electrical potential
we can read on the meter.

Since the RO has no ions,
ion transfer occurs
from the electrode reference solution in the probe,
to the RO.

Once the ions are reduced in the electrode reference solution,
or depleted from the electrode reference solution,
the probe becomes slow to calibrate, or totally disabled.

Ph adjusting RO has the same ionic problem.
 

mexiblunt

Well-Known Member
Although I did read that stuff, hmmm. too much for me right now. slow down cowboy! With my limited experience I think I still would have only tested it after adding nutes. But lord is right. mom says! listen!

ohh wait your saying even with the nutes added it will still mess up the meter. I'm going to read the post linked just because.
 

email468

Well-Known Member
Although I did read that stuff, hmmm. too much for me right now. slow down cowboy! With my limited experience I think I still would have only tested it after adding nutes. But lord is right. mom says! listen!

ohh wait your saying even with the nutes added it will still mess up the meter. I'm going to read the post linked just because.
just remember to always add nutes before sticking your pH meter in which is easy since you shouldn't adjust pH until after adding nutes.
 

mexiblunt

Well-Known Member
Alright got it. I think I'm about done with r/o and meters for now but I do enjoy probing stuff sometimes!
good info for others checking this out too.
 

JohnnyBravo

Well-Known Member
and oh yea... i wont quote email.... but he informed me that you should never do a ph reading on the RO water.....it could possibly fuck something up!!!

but of course you ph your water after the nutes......

just some food for thought....you know when mother says the stove is hot...you should listen!!!!
can someone elaborate (In retard terms) on not checking ph in ro water.....I use ro water from a place less than a mile from me....25 cents a gallon
 
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