Just replaced it in October. Was hoping to get a year out of it.
Have put over 75 hours on it since though.
Always back flush em, even if it looks fine coming out.
Now imagine your neighborhood firefighters and ambulance gets dispatched to a prison because an inmate(in for murder/torture) is having a temper tantrum because they took his iPad away. So he gets taken to a hospital and given a bed while insurance paying patients wait in the lobby for a bed to...