This happens mostly on rinse cycles when the load is small

Welcome to AMHD davidrken

If u list this in the plumbing section u will get more answers.

If u have a newer washer it will call for a 2'' waste line for the washer. Also the stand should be at lest 3 feet tall from the trap.

If volume of water is still too much, u can make it a closed system by sealing the hose from the washer into the stand pipe.

With a little more info can tell u what u need for a closed system.

Good luck

Chuck

You may try flushing the pipe with a water hose under pressure to clean it out, otherwise there is a kit that will seal the drain hose to the drain.