the jiffy tube (blue hose) that came with my fass is not made for diesel, it works, its just not made for it. this what an employee at a tubes and hoses store told me. i find it odd that you have had a leaking problem twice now. i am think that something is not the right size, whether its the fittings or the hose. go to a local store that deals with hoses, tubes, fittings and that sorta stuff and get new hose, just make sure it is the right size. i would take one of your push locks in with you just to make sure you get the correct hose.

 

I ended up backing off clamps and using grey RTV I used on the sump around the yellow caps on the fittings and re clamping. I have not had a drip yet. I'll be getting new hose and fittings in the mean time since I don't have the warm fuzzies about it at this point, time will tell! Thanks for the help