So, what causes a washing machine drain to clog in the first place? Here are some common culprits:

Before we dive into the nitty-gritty of fixing a clogged drain, it's essential to understand how the washing machine drain system works. The drain system consists of a drain hose, drain pump, and drain line. The drain hose connects the washing machine to the drain pump, which then pumps water through the drain line and into the sewer system.

If the hose is clear but water still overflows from the standpipe: