I think those dark spots on the lid of the washer in reply #1 rule out anything gritty like loosened hard water deposits, lint or zeolite residue.
While the hotter the better is true to get out greasy stains from clothes a hot wash can`t do much about to keep dissolved grease and oils in suspension if the detergent has been underdosed. There are limits to Sinner`s Circle.
Even if the detergent is just about enough to keep oils suspended during the wash a grease laden load might still result in the formation of grease balls during the rinses. Even more so if FS is used.
I`m always alarmed if I don`t see any suds in the rinses. The only exception would be if I used a zero suds detergent or natural soap to begin with which I don`t.
But most likely you`ve done everything right and there`s just a nasty build up in the washer from previous owner.
While the hotter the better is true to get out greasy stains from clothes a hot wash can`t do much about to keep dissolved grease and oils in suspension if the detergent has been underdosed. There are limits to Sinner`s Circle.
Even if the detergent is just about enough to keep oils suspended during the wash a grease laden load might still result in the formation of grease balls during the rinses. Even more so if FS is used.
I`m always alarmed if I don`t see any suds in the rinses. The only exception would be if I used a zero suds detergent or natural soap to begin with which I don`t.
But most likely you`ve done everything right and there`s just a nasty build up in the washer from previous owner.