The pump was well priced and well built. however i wanted to change my old pump for one that would pump drier as the bilge is fairly flat so 1" deep of water. purchased this unit s it claimed to pump down to 9mm. once it gets a suction it is quite effective but due to the raised pump it will not get a suction until there is abour 1 1/2" waterso already a bit deep and little better than the nomal whale vertical pump it replaced.
that said if you have no pump this would be a good unit to instal - just wouldnt recommend it as an improvement