Has anyone used the airdog fp-100 from pure flow tech. Is there a difference between the two systems. From the research that I have done, they both claim to do the same function, hook up the same, ect. The lift pump is failing and has ruined the vp44. Getting code po216. My problem is that I have a dealership warranty and do not want the intank pump. Their is price differance of a little over $100. Would like any advise.