Set up filter cage on to the lid by twisting. Insert water and discard 1st pitcher of water to flush out system. Activate the Digital indicator. Swap the water filter each and every forty gallons or improve filter as directed from the Digital indicator. Do not use with sizzling water. https://alkalineanytimewater09987.bcbloggers.com/19009957/fascination-about-alkaline-ionic-water-system