bought this to fix fuel drain back problem

well Dave, I am having a hard time understanding how you can say that you bet my problem is still there when the problem is not still there. If everytime I start this car I have had to pump it numerous times for the past 10 years now I put this valve in it and now I only hit it twice and she fires, please explain this for me. wouldn't you think that if the problem was still there I would have to pump it numerous times. because if it was evaporating, putting the valve in it did not change the evaporating process. Sireland, I will let you know if it changes. Bill
that's great Bill, if its working , its working. I don't see why it would stop working unless the fuel pump completely fails