[pure-silver] Re: Water to temp
- From: Nick Zentena <zentena@xxxxxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Thu, 6 Apr 2006 14:39:12 -0400
On Thursday 06 April 2006 14:09, Koch, Gerald wrote:
> I have found that aquarium heaters are rather slow. The thermostats in
> aquarium heaters also are not very accurate and have a large hysteresis.
> I use a fairly large amount (1 to 2 gallons) as a water bath. In
> Florida I usually wind up cooling the bath rather than heating it.
> Either way I add water from the hot tap or ice to bring the bath to
> temperature measured with a thermometer. Once at temperature it stays
> there with small adjustments for the period needed for development.
> Rinse and fix are not as critical. I use SS containers for the three
> solutions and a few seconds in hot or cold water with stirring brings
> them to temp. At one time I used a circulating pump from an evaporative
> cooler with a variac to keep the water moving.
>
Mine is surprisely accurate. At least it was a surprise to me. My tests
showed it to maintain a temp +/- 1 degree C. I use mine in a closed picnic
cooler. So once it hits the right temp it keeps it there pretty easy. It's
not fast but nothing stops a person from adding warm water to begin with. The
water pump I added got rid of any hot spots.
Nick
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