Re: hotpoint wd420p
Very strange, I have a Hotpoint WMA 62 which although not a washer dryer has the exact same sump/pump/filter and in over three years it has never been touched. It can only be coming from the materials that you are putting in the machine, I cleared three filters last week alone, but in every case they had washed something that was either breaking up or very new that should not have been washed in the first place, one a set of new, bright red cushion covers that completely disintegrated in the wash.