Hi Jet Nuno,
you are right, I should have asked you first how you did it, and comment afterwards, sorry for that.
Please see my previous post, I explained there why I never use shut off valves and as you experienced shut of valves is not as save as most people think that is, It is more common and often one forgets
to open the shut off valve on the start up sequence than the pump to have a failure, I am not that wrong, am I? For what I could understand you do not trust the Portuguese Jet Cat official dealer, in this case
why don´t you contact Jet Cat in Germany for advice? Unless you don´t trust them either?
By the way, if that hapens again, instead of open the valve during the start up, it is better to abort it, disconect the fuel line from the turbine, open the valve to realese the pressure, connect it and start all over
again, this is the way how I would do it if I had a valve fited.
I am sorry to have mistaken you as a beginner, for what I can see now, you probably have more experience in turbines than I have, in this case keep burning, eventually you will get there, we all know,
learning with mistakes is the best way to improve, if costs are not a problem for you.
I might sound a bit hard to you but I only sincerely wanted to help.
Regarding your exhaust tube after the wet start seems OK to me, according of course with the picture you show on your post.
Regards