How to make a homemade pool filter?

To make a homemade pool filter, you can use a large container, such as a plastic barrel, filled with layers of filtration media. Start by placing a layer of gravel at the bottom, followed by sand, and then activated charcoal to remove impurities. Water is poured in from the top, passing through these layers to filter out debris and contaminants. Ensure to regularly clean or replace the filtration media for optimal performance.