It is the name of a prominent Christian saint, Saint Jerome, the translator of the Vulgate.Jerome ranked among the top 200 names given to boys born in the United States between 1903 and 1985. It has since declined in popularity and was ranked as the 616th most popular name for American boys born in 2008.t is the name of a prominent Christian saint, Saint Jerome, the translator of the Vulgate.
Expected Levels. Total hardness in freshwater is usually in the range of 15 to 375 mg/L as CaCO3. Calcium. hardness in freshwater is in the range of 10 to 250 mg/L, often double that of magnesium. hardness (5 to 125 mg/L). Typical seawater has calcium hardness of 1000 mg/L, magnesium.
To calculate how much calcium chloride your swimming pool requires to increase the calcium hardness, choose the increase you want and enter the volume of your swimming pool. Desired increase in calcium hardness 10 ppm 20 ppm 30 ppm 40 ppm 50 ppm 60 ppm 70 ppm 80 ppm. Volume of the pool ,000 litres.