Our whirlpool frontload washer is two years old, and since new it leaves dark stains on light colored fabric, so we have to rewash it several times.
Yesterday we had to rewash our tablecloth 3 times before it got clean
We wiped the rubber seal several times, but it still have dark stains on the rubber, how do we get it off? And is this the cause of the stain on the clothing?

Very common complaint from front load people. I would complain to Whirlpool, maybe they will send a new gasket. I'll stick with top loaders.