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Re: Water Task
Posted: September 22nd, 2017, 3:40 am
by daydreamer0023
ScottMaurer19 wrote:chalker wrote:ScottMaurer19 wrote:
Thanks for (unofficially) explaining! One more question if it's not too much to ask... Does the water have to be pure (i.e. distilled) or can it have dissolved ions in it (i.e. tapwater or saltwater)?
I'd suggest looking at this in 2 ways:
1. Would the average lay person (which is what the majority of SO event supervisors are) look at a given sample of tapwater or saltwater and when asked whether it was 'water' answer 'yes'?
2. Is there any reasonable way the average event supervisor would be able to determine at the event whether a given sample of 'water' was pure / distilled / tap / salt?
As always, this is not the place for official statements or clarifications.
Visibly the event supervisors would not be able to tell. However, they could test by simply using a voltmeter.
I think that the point chalker is trying to make is that whether its freshwater or salt water, it's still water. If salt water weren't considered water, what would we say the ocean was filled of?
Re: Water Task
Posted: October 24th, 2017, 10:44 am
by andrew lorino
daydreamer0023 wrote:ScottMaurer19 wrote:chalker wrote:
I'd suggest looking at this in 2 ways:
1. Would the average lay person (which is what the majority of SO event supervisors are) look at a given sample of tapwater or saltwater and when asked whether it was 'water' answer 'yes'?
2. Is there any reasonable way the average event supervisor would be able to determine at the event whether a given sample of 'water' was pure / distilled / tap / salt?
As always, this is not the place for official statements or clarifications.
Visibly the event supervisors would not be able to tell. However, they could test by simply using a voltmeter.
I think that the point chalker is trying to make is that whether its freshwater or salt water, it's still water. If salt water weren't considered water, what would we say the ocean was filled of?
For future reference, the FAQ
here clarifies this, water must be pure on entry.
Re: Water Task
Posted: October 24th, 2017, 3:41 pm
by nicholasmaurer
andrew lorino wrote:daydreamer0023 wrote:ScottMaurer19 wrote:
Visibly the event supervisors would not be able to tell. However, they could test by simply using a voltmeter.
I think that the point chalker is trying to make is that whether its freshwater or salt water, it's still water. If salt water weren't considered water, what would we say the ocean was filled of?
For future reference, the FAQ
here clarifies this, water must be pure on entry.
I believe bottled, tap, or distilled water should all be acceptable based upon feedback I received from the national event supervisor at the coaches clinic. They do not want any additives, including salt. Baseline dissolved solids in tap water will not be problematic since you can't even detect them without special meters or chemical kits.
Re: Water Task
Posted: November 3rd, 2017, 12:14 pm
by davecutting
So could we add water to a container that weighs it and presses a limit switch?
Re: Water Task
Posted: November 3rd, 2017, 1:33 pm
by nicholasmaurer
davecutting wrote:So could we add water to a container that weighs it and presses a limit switch?
Per advice I received at the Centerville Coaches Clinic from the National ES, yes, this would satisfy the task description.
Re: Water Task
Posted: November 5th, 2017, 12:09 pm
by aniSUKSatCHEM
What does it mean by "closed container" in the rules? Can there be a small hole in the top of the container so that I can use a pipette to transfer water into the container?
Re: Water Task
Posted: November 5th, 2017, 2:00 pm
by nicholasmaurer
aniSUKSatCHEM wrote:What does it mean by "closed container" in the rules? Can there be a small hole in the top of the container so that I can use a pipette to transfer water into the container?
Per the FAQ posted to soinc.org on 10/23/17: "The container must be closed but does not have to be air tight. When water is added to the container, any liquids and/or solids must stay within the closed container and no one can be physically exposed to them."
Re: Water Task
Posted: November 8th, 2017, 8:45 am
by Kyanite
So the FAQS said you cant use salt water for the water task, would pouring the water into a container that has dry salt be against these rules? What do you all think?
Re: Water Task
Posted: November 8th, 2017, 9:12 am
by Unome
Kyanite wrote:So the FAQS said you cant use salt water for the water task, would pouring the water into a container that has dry salt be against these rules? What do you all think?
That seems to be legal to me. So long as the water being poured is not saltwater, it should be fine. However, you're probably better off doing something more reliable, like this:
davecutting wrote:So could we add water to a container that weighs it and presses a limit switch?
Re: Water Task
Posted: November 8th, 2017, 9:37 am
by ScottMaurer19
Unome wrote:Kyanite wrote:So the FAQS said you cant use salt water for the water task, would pouring the water into a container that has dry salt be against these rules? What do you all think?
That seems to be legal to me. So long as the water being poured is not saltwater, it should be fine. However, you're probably better off doing something more reliable, like this:
davecutting wrote:So could we add water to a container that weighs it and presses a limit switch?
It is legal to pour the water into a container that has salt in it (according to the coaches clinic).