PUB water quality

[cheeboonyong]

PUB water quality link

Hi,

does anyone know how to intepret the data on the water alkalinity and hardness?

Total Alkalinity (as CaCO3) 20-50 mg/l
Total Hardness (as CaCO3) 50-100 mg/l

Total alkalinity refers to what? pH or kH?

Total Hardness refers to what? kH or GH?

Using CaCO3 as the base just confuses me...

Phosphate is <0.1 mg/l (ppm). NO3 has wide range between 0.5-15 ppm.

Anyone tested your tapwater with a Hach kit to see how much NO3?

[bclee]

Alkalinity = KH
Total hardness = GH

1°dH (KH or GH) = 17.9ppm equivalent of CaCO3

NO3 level in tap may vary depending on condition of water source.

BC