PH of RO water

Kanga

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Yip 7 as anything that would make it either alkaline or acidic should have been taken out by the r/o unit
 
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i hadn't thought about that before, it must be 7 as that is the neutral point on the litmus test.
In theory yes, but in practice no...

The pH of RO water can be just about anything :) In fact, one should not really bother to test the pH of RO water.

Hennie
 
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pH of ro water will vary according to the quality of supply water and the quality of the RO unit itself. As a given it should be between 5.5 and 7.

Point of interest: If you want to raise the pH of a new salt mix. Add an airstone and pump for 24 hours. It will bring it back up to about 8.2/8.3.

HTH,
Neil
 

Kanga

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Hennie/Neil

Wow, go figure I would never have guessed, ok what would cause the PH to drop or raise the PH in R/O?
Purely for interest sake:)
 
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Well, well just tested my RO and it is ph is 7.1.

So not totally neutral.

Would distilled water be measured at pH 7 ?
 
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