Re: Here comes Summer- tap water temp going up, up, up!

I have my chems and a bottle of water under the sink. With my AC on
in the summer, its always 20°C. With my heat on in the winter, its
always 20°C. I just try to get the wash within a few °s.

Some Dude <(E-Mail Removed)> wrote in message news:<(E-Mail Removed)>. ..
> Ok now my lowest water temp on my tap is now 73 degrees. It was 71 a
> week ago. Instead of trying to fight it, installing a temperature
> control system ($$$$$$$!), I'd rather adjust my development times.
>
> Normally I develop at 68F but lately haven't had that luxury.
> Yesterday I developed KB-25 @ 71F, Rod 1:100 at 17.5 mins with very
> nice, contrasty negs (just the thing I'm after with this film).
>
> However, two hours later (at night), the lowest I could get my temp at
> was 73 degrees after letting the water run for quite a while.
>
> Question is- Is there a rule of thumb on adjusting development for
> temperature? Say, one degree per 30 seconds- or minute..or? Is the
> time ratio relative to the temperature ratio (makes sense don't it..)
>
> I checked KB-25 negs I shot a year ago at 68F for 18m and they are
> pretty much the same (maybe a bit lighter by some very small density
> factor).
>
> Basically I'd like to develop longer but my rising water temp.
> prevents me from doing that- So if anyone had any thoughts- just
> general ideas on times based on temp, please share!
>
> Thanks,
> -sd
> www.zoom.sh


matt

Grainger has a water chiller that's 115v and provides 1.5 gph for $350.
www.grainger.com

"Johannah & Neil Shepard" <(E-Mail Removed)> wrote in message
news:bf1vp9$mtr$(E-Mail Removed)...
> Grainger has a water chiller that's 115v and provides 1.5 gph for $350.
> www.grainger.com

First, I have not done this! A friend (another type of PHD) was a notorious
dumpster diver. He came in one day with an old floor standing water cooler
which he easily converted into a cooling bath for one of his projects. He
just connected the inlet and outlets to his apparatus and plugged it in -
simple. The temp controls were in the apparatus. I do not remember his
regulation requirements, but I should imagine it would be both accurate and
precise.

Second, if I had this need, I would look around school renovations to see if
they were replacing old water coolers. Thirdly, KM*** et al., sell free
standing coolers for bottle water which could also be converted. Today, I
might go this route.

Truly, dr bob.

Again- Another option is a tiny, tiny, tiny, fridge (like, it may hold
a six-pack). I've seen them for < $50.00 at Costco

Thats what I did- worked like a champ.


On Wed, 16 Jul 2003 08:26:03 -0400, "dr bob" <(E-Mail Removed)> wrote:

>
>"Johannah & Neil Shepard" <(E-Mail Removed)> wrote in message
>news:bf1vp9$mtr$(E-Mail Removed)...
>> Grainger has a water chiller that's 115v and provides 1.5 gph for $350.
>> www.grainger.com
>
>First, I have not done this! A friend (another type of PHD) was a notorious
>dumpster diver. He came in one day with an old floor standing water cooler
>which he easily converted into a cooling bath for one of his projects. He
>just connected the inlet and outlets to his apparatus and plugged it in -
>simple. The temp controls were in the apparatus. I do not remember his
>regulation requirements, but I should imagine it would be both accurate and
>precise.
>
>Second, if I had this need, I would look around school renovations to see if
>they were replacing old water coolers. Thirdly, KM*** et al., sell free
>standing coolers for bottle water which could also be converted. Today, I
>might go this route.
>
>Truly, dr bob.
>

Cheers,
-sd
http://www.zoom.sh