In rinse cycle when water starts to be pumped out a leak starts. It appears to be from the small bore plastic corrugated hose that attaches to the rubber belows behind the pump. and terminates by the filter.
I have a Whirlpool Duet front loading washer, approx 4 yrs old. It started making loud noise (drum off center), something is coming off and getting in with the clothes (looks like a large gasket or washer) and it leaks. So I called a repairman. Seems I need a new boot, problem with bearings (warranty) and need a new counterweight for $590. I told him forget it, because the washer was only around $800 brand new. Am now looking at a Maytag front loading washer. Good luck!