Quote: (Originally Posted by
cys)

I have personally observed a KISS valve fail in a way that resulted in delivery of double the amount of O2 through the leak (e.g., a change from 1 lpm to 2 lpm). The following words from the Jetsam website are relevant: "A key point to remember is that everything eventually fails."
The must not hav ben responsible for that, the IP reg must have increased, it happened to me but with an overpresure valvel tum just above the kiss valve pressure you wouldnot have increased your flow rate .