Ok I know that some of you will say that was your first problem getting a Lesco tank sprayer vs Gergson or whoever but here is my deal. I bought a unit from a gentleman that was three years old and he was selling it with a brand new pump (He showed the receipt to me and all) well I was using it for my second round and about after 200 hours of spraying I brake the connecting rod ring on my pump and all. I call the guy that I but it from and he tells me that he had the exact same thing happen to him with the old pump what the heck. Here is my real question this is the second Hypro D403 diaphragm pump to go out on this unit. Should I 1) Buy a new D403 pump and have on of the old ones rebuilt and continue to use it. 2) Buy a new pump and sell the unit. 3) Try and put a different pump from a different vendor on. If I go this route how in the world do I get the information to get a compatible pump. All help is greatly appreciated.