GLB Pool &amp; Spa Products 71114 1-Quart Strike Out Algaecide<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>No waiting to swim - treated water can be used immediately.</li><li>Application: Dilute with at least nine parts of water. (See dilution chart on back of bottle.) Sprinkle solution around edge of pool.</li><li>Chlorine， bromine and ozone sanitizers， as well as salt water pools.</li><li>Apply under sunny conditions for most effective results. Apply initial treatment to a freshly filled pool or at first visible signs of algae growth.</li><li>This item is not for sale in Catalina Island</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41NYE57ED1L.jpg" noproxy>