[MR] Fwd: care with accusations Re: Pennsic Water Challenge

[Craig]

That sounds more like a conductivity meter rather than turbidity, as 
turbidity uses a beam of light passing through the sample to determine 
scatter.

However, if it was measuring turbidity, and you read the well water at 
400 NTU (not PPM), that's not totally unexpected.  Charlotte water at 34 
NTU, however, is.  That's a violation of EPA regs, which require 
drinking water to have a turbidity of less than 1 NTU.  Same applies to 
bottled water, which incidentally is rarely any better than tap water. 
Hopefully the 34 NTU reading was a result of the pipes leading to your 
test point, and not the city water itself.  Most city municipalities 
produce water that is as pure as bottled water, and they are closely 
monitored.

Well water, however, isn't that closely checked except for a few 
parameters, and could very well be an issue.

-Cian

On 7/17/2011 8:13 AM, Logan wrote:
> its a portable turbidity tester, not for anything specific.  two electrodes
> shoot an arch and it tests resistance (if i remember the explanation
> correctly).  when my partner and i built our water purification store it was
> a piece of equipment that was suggested by the company that built our
> filtration and storage tanks.  we tested charlotte city water before and
> after running it through our equipment.  since we ran two reverse osmosis
> filters the water would always be around 1ppm since few things are smaller
> than one micron.  gases and fecal coliform were removed via the charcoal i
> guess and bacteria via the uv bath.  and something removed the fluoride,
> just dont recall what it was.  ;^)
>
> the meter was about 6" long by 1" square if that helps.
>
> regards
> logan
>
>