My sister's washer has been leaking for awhile. The bottom of the washer chassis is covered in rust. I pulled it away from wall, removed the front and watched through all of the cycles and couldnt see any leaking or evidence other than rust on bottom. Tub drains fast when its supposed to. I ran it one more time empty on low setting and while i was putting some tools away my sister yells that it was leaking again during the spin cycle. By the time I got back in there it had stopped. Ran it again but no leak. I'm so confused.