Here is an article on static and teflon hose used in aircraft.
www.sacskyranch.com/statichose.htm
"How about teflon lined water hoses for high temp. Will pin holes form
there as well?"
I would use conductive teflon in airplanes if there is a reasonable flow
happening.
I will be using unlined teflon for the fuel side of differential pressure
sender on 914 and remote oil sender on same.
There will be little flow in these lines.
Just a side note, I will fill the fuel line with 100LL, so when it turns
20 years old hopeful it is not all varnish.
Will also fill oil line with oil so when pressure happens there is not air
in there that will be squeezed and have water come out and do nothing good
to sender.
Ron Parigoris
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