ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
*****************************************************************************
We use Physan 20 for its germicidal properties in water and a copper
ion generator. We also use automatic systems to replace the water
several times a day and completely drain at night. Our feeling about
chlorine, bromine and ozone are that they would be fine approaches if
properly monitored and maintained but that typically doesn't happen in
a museum exhibit. Also, if you are going to use chlorine (and to a
lesser extent bromine) you need to consider its long term effect on
all your O-rings, shaft seals, etc.
On Jun 18, 2009, at 1:45 PM, Earl Stirling wrote:
> ISEN-ASTC-L is a service of the Association of Science-Technology
> Centers
> Incorporated, a worldwide network of science museums and related
> institutions.
> *****************************************************************************
>
> depends on the exhibit and it's special needs, we have about 5
> different
> ways we do it, though they often involve bromine tablets or ozone
> generators
>
> what are your needs?
>
> I'd prefer to stay away from the halogens like chlorine and bromine,
> but
> sometimes you need a residual sanitizer...
>
> ----
> Earl Stirling
> Swiss Army Knife
> e x p l O r a t o r i u m
> 3601 Lyon St
> San Francisco CA 94123
> +1.415.353.0401
>
>
> On Thu, Jun 18, 2009 at 8:46 AM, Joshua Larson <[log in to unmask]>
> wrote:
>
>> ISEN-ASTC-L is a service of the Association of Science-Technology
>> Centers
>> Incorporated, a worldwide network of science museums and related
>> institutions.
>>
>> *****************************************************************************
>>
>> I'm looking for information about how you treat water in your water
>> exhibits.
>>
>>
>> Do you use chlorinators to deliver chlorine?
>>
>> How often do you test the water for chlorine?
>>
>> Do you use ozonators?
>>
>> On average, how often do you replace water?
>>
>> Is there something really important you'd like to share?
>>
>>
>> Thanks!
>>
>> Josh Larson
>>
>> Explora
>>
>> ***********************************************************************
>> For information about the Association of Science-Technology Centers
>> and the
>> Informal Science Education Network please visit www.astc.org.
>>
>> Check out the latest case studies and reviews on ExhibitFiles at
>> www.exhibitfiles.org.
>>
>> The ISEN-ASTC-L email list is powered by LISTSERVR software from L-
>> Soft. To
>> learn more, visit
>> http://www.lsoft.com/LISTSERV-powered.html.
>>
>> To remove your e-mail address from the ISEN-ASTC-L list, send the
>> message SIGNOFF ISEN-ASTC-L in the BODY of a message to
>> [log in to unmask]
>>
>
> ***********************************************************************
> For information about the Association of Science-Technology Centers
> and the Informal Science Education Network please visit www.astc.org.
>
> Check out the latest case studies and reviews on ExhibitFiles at www.exhibitfiles.org
> .
>
> The ISEN-ASTC-L email list is powered by LISTSERVR software from L-
> Soft. To learn more, visit
> http://www.lsoft.com/LISTSERV-powered.html.
>
> To remove your e-mail address from the ISEN-ASTC-L list, send the
> message SIGNOFF ISEN-ASTC-L in the BODY of a message to
> [log in to unmask]
Joe O'Connell
Creative Machines Inc.
3113 East Columbia Street
Tucson, AZ 85714
(520) 294-0939
(800) 861-7937 toll-free in North America
(520) 294-0848 fax
We create objects and environments that encourage
creativity, support social interaction, and inspire self-confidence.
http://www.creativemachines.com
http://www.ballmachinesculptures.com
***********************************************************************
For information about the Association of Science-Technology Centers and the Informal Science Education Network please visit www.astc.org.
Check out the latest case studies and reviews on ExhibitFiles at www.exhibitfiles.org.
The ISEN-ASTC-L email list is powered by LISTSERVR software from L-Soft. To learn more, visit
http://www.lsoft.com/LISTSERV-powered.html.
To remove your e-mail address from the ISEN-ASTC-L list, send the
message SIGNOFF ISEN-ASTC-L in the BODY of a message to
[log in to unmask]
|