I was out at the pool pad today when the pump turned on and I heard an unusual random ticking/clicking sound coming from the pump while it was running. After about a minute, the unusual noise stopped and I saw a rubber part fall from the pump and roll a few inches across the concrete pad. The part is torn and clearly worn. I have looked at parts diagrams for this pump, but have been unable to identify the part (see attached pictures). Any idea what it is or where it goes?