[meteorite-list] Water cutting question

From: Steve Dunklee <steve.dunklee_at_meteoritecentral.com>
Date: Tue, 27 Nov 2012 23:54:56 -0800 (PST)
Message-ID: <1354089296.53295.YahooMailClassic_at_web121306.mail.ne1.yahoo.com>

Floride which is added to tap water in some areas is more reactive than chlorine. Adam has been cutting meteorites for years. Hard to find any fault with experience like his.
Cheers
Steve

--- On Wed, 11/28/12, Adam Hupe <raremeteorites at yahoo.com> wrote:

> From: Adam Hupe <raremeteorites at yahoo.com>
> Subject: Re: [meteorite-list] Water cutting question
> To: "Adam" <meteorite-list at meteoritecentral.com>
> Date: Wednesday, November 28, 2012, 2:32 AM
> I am more concerned with the
> chemicals added to and the metals contained within our
> "drinking" water than the pH level so long as it is
> somewhere near a pH level of 7.0.? If I wouldn't dream of
> drinking the tap water, I certainly wouldn't want to
> jump-start chemical reactions within meteorites by using it
> as a coolant.
>
> By the way, the TDS and pH levels change throughout the day
> here.? The incoming tap water TDS levels are much higher in
> the morning than the afternoon.?? I use Potassium Hydrogen
> Phthalate which has pH level of 4.00 and Mixed Phosphate
> with a pH level of 6.86 to occasionally calibrate my
> meters.
>
> I do not like the idea of adding anything to the cutting
> coolant and have produced some very stable pieces using
> self-filtered and sometimes distilled water.
>
> I have seen meteorites ooze some pretty nasty greenish brown
> juice like Gubura and Brenham within a few months after
> being cut with tap water.? Who knows what started the
> reaction, perhaps chlorine?
>
>
> Kindest Regards,
>
> Adam
>
>
> Adam
>
>
>
>
> ----- Original Message -----
> From: Richard Montgomery <rickmont at earthlink.net>
> To: Don Merchant <dmerchan at rochester.rr.com>;
> Adam Hupe <raremeteorites at yahoo.com>;
> Adam <meteorite-list at meteoritecentral.com>
> Cc: Don Merchant <dmerchan at rochester.rr.com>
> Sent: Tuesday, November 27, 2012 5:31 PM
> Subject: Re: [meteorite-list] Water cutting question
>
> Adam and List...(curious me, and although I'm not cutting
> yet, will soon.)
>
> The question: given any local water's TDS and variable
> ambient pH in all of our waters vs. using distilled
> water...why not use a commercial standard buffer 7.0?
>
> -Richard M
>
>
> ----- Original Message ----- From: "Don Merchant" <dmerchan at rochester.rr.com>
> To: "Adam Hupe" <raremeteorites at yahoo.com>;
> "Adam" <meteorite-list at meteoritecentral.com>
> Cc: "Don Merchant" <dmerchan at rochester.rr.com>
> Sent: Tuesday, November 27, 2012 9:52 AM
> Subject: Re: [meteorite-list] Water cutting question
>
>
> > Great Info Adam!
> > Sincerely
> > Don Merchant
> > ----- Original Message ----- From: "Adam Hupe" <raremeteorites at yahoo.com>
> > To: "Adam" <meteorite-list at meteoritecentral.com>
> > Sent: Tuesday, November 27, 2012 11:53 AM
> > Subject: Re: [meteorite-list] Water cutting question
> >
> >
> > I remeasured the PH and TDS levels of my incoming tap
> water and again after being filtered.
> >
> > Before filtering After Charcoal and RO Filtering
> >
> > TDS: 515 PPM 31 PPM
> > PH: 7.7 7.1
> >
> >
> > It looks like 7 stage RO filtering made the water move
> towards PH neutral from being on the basic side. A reading
> of 7 would be considered perfect neutral so I am happy with
> a PH reading of 7.1. I would rather have it lean towards
> basic than acidic which is the case here. On the other hand,
> the TDS level of the incoming tap water exceeds EPA
> standards! I wouldn't dare drink the tap water here. Might
> end up with a case of kidney stones!
> >
> > I don't think meteorites would be happy with the tap
> water here. I will do chemical testing in a few weeks. I
> hope there is no chloramine in our system as is the case in
> California.
> >
> > Kind Regards,
> >
> > Adam
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Received on Wed 28 Nov 2012 02:54:56 AM PST