3 ms·

That depends on how often they cycle on/off. In brutal conditions of constant use, I’ve seen them fail after 3-4 years.

• MattGaiser 5y ago
  But that would point to this being a case of brutal conditions with constant use. My real question was to try and grasp how much water they were pumping compared to others.
• cratermoon 5y ago
  Yes, which is exactly the problem here. Those pumps should not have been in constant use. The fact that they failed so often means they were being run far more than would be expected under normal conditions.
  • deleted 5y ago
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  • verelo 5y ago
    Yeah, i imagine in cases where this is to be expected, the sumps themselves need to be much larger (or have more of them) and the pumps need to be higher duty and intended to move more water. Certainly exceptional, but i'd hope anticipated in the design. Our sump here runs all the time when it rains, but then it goes for weeks without moving any water (especially in the winter). When we moved into this house, the pump was broken, but there was also water damage in the basement. First thing i did was replace it and now its a common sound to hear the pump running.