Hardness Map

[mmorris]

I thought this interesting. Do people find it relatively accurate? http://www.americanaquariumproducts.com/images/graphics/usahardenss.jpg

[roclement]

about acurate for me! good map!

Rodrigo

[wgtaylor]

I thought this interesting. Do people find it relatively accurate? http://www.americanaquariumproducts.com/images/graphics/usahardenss.jpg

Yes interesting Martha. Keeping discus, water quality has been my primary interest. Hadn't seen that map before and wonder how the data is affected by public water storage, ie dams, lakes and reservoirs vs drilled wells which can be affected by geological conditions where I've seen larger fluctuations.
It's interesting comparing that map to a precipitation map of the US.
Seems to have a relative influence.
http://www.wrcc.dri.edu/pcpn/us_precip.gif

[flyman767]

About right for me(NE Ohio)..enormous amounts of limestone..Ray

[mmorris]

Yes interesting Martha. Keeping discus, water quality has been my primary interest. Hadn't seen that map before and wonder how the data is affected by public water storage, ie dams, lakes and reservoirs vs drilled wells which can be affected by geological conditions where I've seen larger fluctuations.
It's interesting comparing that map to a precipitation map of the US.
Seems to have a relative influence.
http://www.wrcc.dri.edu/pcpn/us_precip.gif

It IS interesting to compare it with the precipation map.

[Jhhnn]

I think it's mostly accurate wrt raw water, the water entering various treatment plants. Some, like my provider, Denver Water, actually engage in hardness control by treating the water with lime and CO2-

http://www.denverwater.org/WaterQuality/TreatmentProcess/

Denver's water is mostly collected and diverted at high altitude from snowmelt, then stored in non-limestone reservoirs. The water that comes out of my tap is considerably softer than the map would indicate, with a KH of <100ppm...

Suburban water is often extremely hard, particularly when some or all of it comes from wells or is diverted locally from the South Platte River... I don't think any of them make any efforts to control hardness, at all...

[roundfishross]

it nailed mine , but my father lives in se. ga. and his water is extremely hard dosnt seem quite rite for his.

[fishorama]

Interesting maps! Looks pretty accurate for places I've lived: MA, MI, DE