I have a ton. I mean like over 30 aqua clear filters. All of them have been running for years. Never once have I needed to replace a motor. Very often they won't start after a power outage. I take the cover off the filter, move the the u tube to the slow flow rate which will expose the impeller. I then rotate the impeller manually with a chopstick. The filter starts working again almost every time. Sometimes there is a snail stuck in there so I have to take it apart. That is rare however. If the water level in the filter is low and the filter has trouble starting I just add water to the filter until it starts working again. To the person who keeps replacing motors, I would love to go through your trash and see what other free working stuff you are getting rid of.