Possibly. I should also note that the problem started happening after about 4 years of usage. I live in a hard water area, but use a water softener. Maybe what

Possibly. I should also note that the problem started happening after about 4 years of usage. I live in a hard water area, but use a water softener. Maybe what you said is a clue, though, and I’ll see if I can find any information phrased in terms of soap reacting with water. Different variations of “soap doesn’t drain” hasn’t found me any hits, like I’m the only one having this issue.