IS the model of the Rio pump mentioned at all? I think it's the case of generalizing things. Just because one or two pumps burn out, does it imply that all of them will? I heard that Koralia powerheads break down after one year, does that mean they all will break down after one year? I heard things like that alot, but is there really a way to have a good idea of how many really break down or burn? Is there somewhere that post the statistical numbers for the Rio pumps. If the number of Rio pumps that melt in that manner exceeds 25% than I would be concerned.
I would say 5 to 10 percent is a lot. Lets say at 25 percent a LFS sold on average a dozen a week, that would be 3 coming back each week because they failed, way too many. Even one a week would be considered high. Maybe Rob can remember if it was a certain model or something