Using the DeWalt DCD2000 drain snake replacement drum is easy. First, make sure your DCD200 drain snake is turned off. Then, load the drum with the appropriate cable - you can choose between a 3/8' x 35' or a 5/16' x 50' cable depending on your needs. Connect the drum to the DCD200 drain snake and you're ready to start clearing those pipes. When using it, be careful not to force the cable too hard as it might damage the drum or the cable itself. For maintenance, after each use, clean the drum and the cable with a dry cloth. Store the drum in a dry place to prevent any damage from moisture. Remember, this product comes with a 3 - year limited warranty, a 1 - year free service contract, and a 90 - day money - back guarantee, so you can use it with confidence.