randomfoiler said..
unscrew the valve?
Yes I know that but there is a "pinch value" that is well know in kiting circles as I have now found out so all is good but I wonder why do you want to isolate the centre strut from the rest / outside of the wing?, maybe someone knows? & does this mean that the centre strut can be & should be pumped up to a different / higher psi pressure? and why what are the advantages & disadvantages?;-) Many Thanks :-)
