Have you ever been brewing for half an hour but not got coffee? Q: Why can't the water be pushed up and percolated through the coffee? Water gets hot, but percolator does not work! Water does not get pushed up the tube. Water in urn gets hot but none gets pushed up to percolate through ground coffee! A: Please properly insert the Percolator Filter into the groove at the inner bottom of the coffee urn, so that the water can be able to push up as it heats up. Please check the filter is in the correct position. Stainless Steel Reusable & Fine Filter No need for filter paper, you can start brewing anytime. The stainless steel filter basket and tube are durable and easy to clean. The 304 stainless steel material is not only food-grade, but it will not react with acids, making brewing more secure. Golrean has every consumer's health in mind! Heat-insulated & Easy to Grip Handle The cold-touch handle on the coffee percolator ensures safe and easy handling, It's also designed for effortless lifting during cleaning. Viewable Water Gauge The coffee urn features a clear viewing window on the outside that makes it easy to monitor the water level and the amount of coffee remaining. Inside, the MAX water level marks simplify the process of measuring the water level. Water-proof Switch & Indicator Light Waterproof protection gives you peace of mind during the cleaning the urn.Bright indicator lights let you know when coffee is ready.