Water Gardening: Need pond pump recommendations, 1 by Carolyn22

Carolyn22 wrote:
We started out with the Pondmaster pumps and have gone to the EasyPro pumps. However, I do still have Pondmaster pumps running after 6+ years. I think one of the smaller Pondmaster pumps DH said was at least 7 years old.

My understanding of the warranties is that is the minimum length of time your pumps should run. They wouldn't warrant it otherwise.

I would be curious as to the rationale for the discrepancy though.