We moved into our house a few years back, and just now the sump pump started to make loud rattling noise when running. It is as if someone is banging on the pipes with a large piece of metal.
I have not been able to watch it run and witness the issue because it takes forever to fill the sump with water. I tried probing the pump, the pipes and whatever is around it, but everything looked solid.
Has anybody of you had that issue? Is that something I could fix on my own or do I need to call a plumber? What could that be so I have something to explain to the plumber if it comes to calling one?