My washing machine isnt draining despite me opening filter, I am not sure if the blockage is in the machine or the pipe because the drum itself isnt emptying at all, if I get the door to unlock I manually scoop out all but about a cup or two worth of water and then when I open filter the drum empties instantly and goes through filter (which I assume if there was a blockage before the pump then opening the filter wouldnt drain instantly!)
Last time I had a problem I just removed the tube from the u bend and poured thin bleach down it and it worked once(which supports the pipe blockage theory) so I want to unscrew the u bend part and get any gunk out of it.
I also cleaned the top of the pipe then blew into it(no jokes lol) and this got out a little bit of water in the pipe and some dirt, I then poured a little boiling water in and a trickle came out, blew it again and the water poured out with more dirt.
3rd time I put in some brown vinegar which just went straight through and got some more dirt(but still nothing that would cause a blockage unless it was all in one lump.
The u bend I want to try now and test machine tomorrow, my water is draining fine from sink so if there is a blockage its minor.