The Avista Vitec 1400 Antiscalant provided under this contract shall meet the following specifications: L. The antiscalant shall inhibit: a. The precipitation of sparingly soluble inorganic salts such as, but not limited to, calcium carbonate, calcium chloride, calcium sulfate, barium sulfate, strontium sulfate and silica. b. The deposition of colloidal materials such as, but not limited to clays and the hydroxide metals such as aluminum, iron, and manganese. 2. The antiscalant shall be fully compatible with feed water constituents such as aluminum, iron, and manganese, and these feed water constituents, if present, exposure to these chemicals will not cause precipitation of the Antiscalant or a catalyzed reaction that damages the membrane. 3. The antiscalant dose is limited to the range 1,-4 ng/L due to equipment limitations. Proposed antiscalant doses outside this range will not be accepted. No concentrated products shall be used - the City will not dilute antiscalant prior to use.
