Pakistan's natural resources range from natural gas reserves, vast land, coal, petroleum, copper, salt and iron ore among others. It has the second largest salt mines in the world, as well as worldâs fifth largest gold mines.
Leslie's 14427 Hardness Plus, 25 lbs. Leslie's 14428 Hardness Plus, 45 lbs. Keep your calcium hardness at proper levels at all times to help protect your pool, water, and pool equipment. The calcium hardness level in a pool does not increase rapidly, but it is good practice to check the calcium hardness every month. Adding 1-1/4 pounds of hardness plus to 10,000 gallons of water will raise the calcium hardness by 10 ppm. **The minimum level of Calcium Hardness is 150 ppm.
At minimum you should get a test kit that can test for Free Available Chlorine, Cyanuric Acid, pH, Total Alkalinity, and Calcium Hardness. These are the main items weâll be balancing. Balancing: Before adding chemicals, itâs important to turn your pump on so that the chemicals will be circulated through the pool. Also, when working with chemicals, you can only add a certain amount of chemicals per 10,000 gallons of water at one time.