For manual feeding, use the dilution method - make solution in a clean plastic pail and pour around the perimeter of the pool. If system has an automatic controller, disable and then enable once added and mixed. A solution tank with automation can be helpful for pools requiring pH increaser on regular basis. In general 1 lb. will increase the pH 0.3 in 10,000 gallons. A base demand test can be performed with the Taylor Test Kit for more accuracy. Always check and maintain alkalinity ideal range, then use the basic material to increase the water’s pH. Click on the "Product Details" tab above, to select bag or pail.