I recently purchased 2 brand new MP10es Vortech marine pumps for $22 dollars a piece. they were shipped too my store and sat in a closet for about 2 years and then went on clearance so I could not pass them up!!!! now one of the pumps is fully operational and works amazingly. However my other one does not . So here is my situation. I put the first MP10 on a few days before the second one and i left the other in its unopened package in the box in my car to show everyone how cheap I got these ...