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Re: tds


Just what I was looking for,,, thanks a bunch!

At 08:30 PM 9/14/00 +0000, you wrote:
>Hello Keith,
>
>Multiply the grains-per-gallon (US) by 17.1 to get ppm hardness. Thus
>your 19 grains/US gal give 325 ppm -- "hard" -- just slightly softer
>than what my tap water reads!
>
>Best,
>
>George
>
>
>
>"Grif" w. keith griffith wrote:
> >
> > I give up,,, I can't find the conversion for hardness to grains per gal.
> > My water is 19 gr gal,,, per memory somewhere around 3 to 5 is a good place
> > to start for the soft water killies?
> >
> > At 03:07 PM 9/14/00 -0700, you wrote:
> >
> > >Ron Jagger wrote:
> > > >
> > > >
> > > >               hi all
> > > >              With all the talk about the meter I have
> > > > one not much good if you can,t or don,t know how to
> > > > read it
> > >
> > >Very true, Ron. Here's the skinny. Meters read in microSeimens (inverse
> > >megOhms) or mg/L (roughed as parts per million). My old meter had a LCD
> > >display that read out from 01 to 199. You were expected to know enough to
> > >add another zero, so it reads from 10 to 1990 ppm. To get tds in ppm 
> from a
> > >uS conductivity meter, just divide by about 2. That's close enough.
> > >
> > >Truly soft water is under 100-150 ppm.
> > >
> > >Medium to hard runs from 150-350 or 400ppm
> > >
> > >Much over 400 ppm gets you to the liquid rock that is typical of a lot 
> of US
> > >tap water.
> > >
> > >My Santa Clara water used to run between 450 and 500 ppm. All killies 
> could
> > >live in it, but the Aphyos and other rainforest fishes had trouble 
> breeding
> > >in it. The folks that have it best for *all* killies have water in the
> > >120-150 ppm range, IMHO.
> > >
> > >Use the meter to check the water your fish are in, and the water they will
> > >be moved to. If those differ by more than a factor of 2 (e.g., 100 to 
> 200),
> > >consider making the change gradually.
> > >
> > >Also use the meter to keep track of your tap water. If any unexpected big
> > >change happens, call the water service and see what happened, before doing
> > >any water changes. They often buy water from elsewhere that has chloramine
> > >you weren't treating for, etc. You may need to add Amquel o/e that you
> > >didn't before.
> > >
> > >Turn the switch on, remove the end cap, dunk the probe end to just 
> below the
> > >marked limit line, and read the meter while it is in the water. It's
> > >actually pretty simple.
> > >
> > >Wright
> > >
> > >--
> > >Wright Huntley, Fremont CA, USA, 510 494-8679  huntleyone at home dot com
> > >
> > >"People constantly speak of 'the government' doing this or that, as they
> > >might speak of God doing it. But the government is really nothing but a
> > >group of men, and usually they are very inferior men." --H. L. Mencken
> > >
> > >                *** http://www.self-gov.org/index.html ***
> > >---------------
> > >See http://www.aka.org/AKA/subkillietalk.html to unsubscribe
> >
> > 'Grif'   N7IVS
> >
> > ---------------
> > See http://www.aka.org/AKA/subkillietalk.html to unsubscribe
>---------------
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'Grif'   N7IVS

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