I recently spoke with Tom and Danielle at Dolphin pumps. You could not ask for nicer people. Tom told me usually a seal is all that is ever needed for the pump I had. He offered me a deal to fix it. He gave me a quote on paper quickly and told me turn around was pretty quick. I am happy to have a Dolphin pump with the feed back and information I got from Tom. My friend who has 3 or four of these pumps fixed mine really easy. He basically cleaned it. I have a Dolphin pump and a Sequence pump. I can hardley wait to compare them side by side.