so a little history on this issue. The tractor would lose power on side slopes. I thought it might be the fuel filter so I changed it. I never got it started after that even following there procedures for bleeding the system. So I had it hauled to the dealer. So today after my friend sent the info from this site I was in the city so I went by the dealer. So the dealer didn’t have much to say. When they found the valve parts they said they looked in the parts book but found nothing that looked like the parts they found. Didn’t really know why the valve was there. Had know idea where the white flapper/valve was. Couldn’t explain how the valve was sideways in the cross over tube. Couldn’t explain where the clamp was that held the valve in place. So I’m thinking the factory failed to install the clamp that holds the valve in place allowing it to turn side ways. I’m still questioning how it cost $2200 to pull the tanks clean them and replace the sending unit that they say was bad. He also said that the small pieces of aluminum, from the seal on additive bottles, would have caused the fuel pick up to fail causing loss of power. Problem is they got it running before they started chasing the sending unit issue. I’m not sure how big the pick up is put the slivers of aluminum wouldn’t cover half of a dime. Thanks for the input.