The lint trap and filter were clogged with black and green gunk and slime... I removed handfuls of the stuff. I just can't believe that the girls here have been washing their clothes in water pumped through that nastiness.
So I cleaned it all out (reached my arm in up to the elbow of the middle column bit... thank God for my little hands) and coz it was such a tight squeeze, I rubbed my hands red and raw with the hot water and scourer.
But at least now I have some comfort that I'm washing my clothes in clean water.