+1 on calling Ecotech. They were great when I had a mess on my hands after a local lfs sold me a used MP40W as new and it kept falling apart. They were no help whatsoever, so I called Ecotech and I got the replacement in two days once they verified that the pump was used and rebuilt. They backed up the product and I even got a couple of emails afterwards from Steve, who was checking up on how things were going.