More evaluations and testomony of the Eco 7 are needed. Long term use and average life span for producing air at 8'-10' deep are sort of unknowns to most of us. So far so good for the Eco7. I think the pump is a very economical pump and pretty good for shallow, small ponds and small aquaculture situations where depth is not an issue. IMO the shallower the pond the longer the life spawn will be for these pumps. Number of hours operated each year will also affect how long the pump lasts. In the north where we typically aerate from April to November 5-8 hrs a day, I am starting to see rebuilds needed for the Gast rotary vane pumps after 10-18 yrs of service. I have one local pump still going on the 1st set of vanes after 19yrs - sold it in April of 1993 for $260.
RC makes a good point - since the Eco7 is low cost, have a second one on the self as a 'back-up'.
Last edited by Bill Cody; 08/06/12 10:05 AM.
