I use distilled water for stock solutions and Sistan (the final bath, you
can use Sistan over and over
until its dry!)
For everything else its tap.
On Tue, Jul 27, 2021 at 8:17 PM Garry . <kom1990@xxxxxxxxxxx> wrote:
I know many may disagree. But I'll just relay some experiences I had. I
worked at a lab that had a number of different water processing setups.
So I brought some deionized triple filtered water home and used that to
mix developer. The results were terrible.
So I then brought home some reverse osmosis water and mixed some
developer. The results were terrible.
I brought home distilled water that I knew was really distilled and tested
for dissolved solids. The results were good.
I used filtered tap water and mixed developer and it matched the distilled
water results.
Now I'm aware of all the differences between the different purification
methods, and why some may not work as well as others, but I've been using
tap water ever since and I've checked the ppm of the tap water as reported
by the water company and contaminates are all very low. I asked some film
processing companies what water source they used and they all said tap
water, filtered of course.
If distilled water makes people feel that the results will be more
consistent, they should continue to use it. But, I've never seen any
documentation as to the real differences between quality tap water and
distilled water for mixing film developer. Now I will concede that in some
locations, the water quality may be less than other locations, and in that
instance, distilled water may have a slight edge.
If I was making a stock solution or concentrate that I was planning to
keep for a year, I might consider distilled water but I'm not sure it would
be any better than filtered tap water.
------------------------------
*From:* pure-silver-bounce@xxxxxxxxxxxxx <pure-silver-bounce@xxxxxxxxxxxxx>
on behalf of Dana Myers <dana.myers@xxxxxxxxx>
*Sent:* Tuesday, July 27, 2021 10:33 PM
*To:* pure-silver@xxxxxxxxxxxxx <pure-silver@xxxxxxxxxxxxx>
*Subject:* [pure-silver] Re: HC-110
On 7/27/2021 7:13 PM, hksvk wrote:
Thanks, John. It looks a mess. Thinking I need to toss it.
I recently mixed-up a 5l batch of Xtol, from well-stored powder, using
"ZeroWater"
(counter-top DI cistern) as usual, in a clean stainless pot (that was
washed in the
dishwasher afterward). A few weeks later, I noted the appearance of
sparkly floaters
in the developer as seen through the brown glass bottles that have only
ever been
used to contain full-strength Xtol stock.
I noted this immediately before processing a roll of 100TMX, and, sure
enough, some of
those sparkly flakes were stuck to the emulsion, and Edwal cleaner wasn't
taking them off.
That's when I also noted floating junk in the remaining bottles.
I tossed the remaining stock, rinsed the bottles well, got a dedicated
plastic bucket
for mixing Xtol and made another batch. I note the first 100TMX I
processed in this
batch was a bit sharper than in the previous batch; more what I expect
from 100TMX.
I can only speculate I contaminated the first batch, possibly with Jet Dry
residue on the
mixing pot, possibly with residue on the bottom of the funnel (since
cleaned) that I
used to fill the bottles, or ?
Anyway, if the develop makes you wonder if it's OK, it's probably not OK.
Dana K6JQ
On Jul 26, 2021, at 9:05 PM, John Stockdale <jstoc@xxxxxxxxxxxx> wrote:
If it has been cold, maybe the components could not stay in solution.
Sometimes gentle warming can help crystals go back into solution.
However, if the color has changed, my guess is that some reaction has
taken place and that would not be reversible. When "Kodak" changed from
the old water-free formulation to something more conventional, there was
discussion about how long it would last. My guess is that it will still
work but maybe a bit weaker.
