I use distilled water from Walmart in sealed jugs. Can't imagine how
measuring the ph of the water would make a difference in the ph of the
finished product.
I make mine in a gallon sun tea jug with a screw on top and the only way it
is exposed to the air is what air could get in around the silver strips
that fit fairly tight through slots cut in the lid. Of course if you turned
it upside down it would leak liquid.
Dave
On Mon, Jul 8, 2013 at 10:04 AM, Joe Huard <joe.hu...@primus.ca> wrote:
> Distilled water should be around pH 7 when freshly made. However, if left
> sitting around exposed to air, it can go down to pH 5.5. I read that
> nitrogen which is 78% of the air reacts with the DW and creates nitric acid.
> If you measure the pH of your DW right before you make EIS and right after
> making EIS, you should get a higher pH.
>
> Joe H.
>
> On 08/07/2013 12:39 PM, Da Darrin wrote:
>
> Strange!
> My meter or the best test strips I could find never went over 6.8 no
> matter how fresh or old my solution was.
> Dave
>
>
> On Mon, Jul 8, 2013 at 9:16 AM, Marshall <mdud...@king-cart.com> wrote:
>
>> On 7/7/2013 11:45 AM, Neville Munn wrote:
>>
>> Just as a point of interest, I had a couple of samples of mine tested
>> specifically for pH a couple of years ago.
>>
>> Sample 1. Tested within 24 hours after production and pH read off the
>> scale on the alkaline.
>> Sample 2. Tested after it had been in storage for a week or so read >7.0
>>
>> Note: Whilst I am unable to locate the exact numbers on the above, I do
>> know they were greater than base 7.0 because I had those two samples tested
>> specifically for pH to varify the findings of the following.
>>
>> Several years prior to the above I had several other samples {from
>> different batches and storage time frames} laboratory analysed of my EIS
>> and one of those tests included pH and ALL were between 7.4 and 7.8
>>
>> My conclusion going on all the above tests...pH is sky high immediately
>> after cessation of the brewing process but drops over time to steady at
>> >7.0, none were below 7.0 or acidic.
>>
>>
>> That is expected. Ionic silver is a combination of silver oxide and
>> silver hydroxide. Silver hydroxide is alkaline. Over time the ionic silver
>> tends to form colloidal silver, thus the ph should go down toward 7. Now
>> if exposed to air for sufficient time, the ionic silver will eventually
>> react with CO2 in the air forming silver carbonate, a salt, and eventually
>> one could expect the pH to go below 7, as carbonic acid is formed and there
>> is no silver hydroxide left to neutralize it.
>>
>>
>> I had samples 1 and 2 tested by water people {people who monitor
>> swimming pools} as I don't trust those Litmus paper thingo's, or those pH
>> meters.
>>
>> I think most of these people use the pH meters themselves. If done
>> properly, the meters can be quite accurate.
>>
>> Marshall
>>
>
>
>
