@Gabriel Lorin You said:”I thought best stoves quality wise are either brass or stainless steel 304 when it comes to fuel tank.” —> 1. There were times when the usual brass tanks of some stoves and pressure lamps were replaced with steel due to the brass being required for war; for example Tilley lamps in WWII. 2. Nonetheless, one of the greatest manufacturer of pressure stoves and lamps, Coleman (USA, Canada, UK, Australia), used steel almost exclusively for their pressure vessels. 3. There are many examples of stoves in the Reference Gallery that have steel tanks, and, like this example of the Eezy-Fyre, appear to have always been manufactured that way. 4. In this example in the Reference Gallery, @Sedgman sets out that the Eezy-Fyre is a WWII stove. Brass in Australia was prioritised for the war effort. In this example in the Reference Gallery @threedots describes the steel tank of the Eezy-Fyre as having a “galvanic coating”. You said: “you tell me how it is”. Out of politeness I'l treat that as a non sequitur. Cheers Tony
Update: Yesterday I received a small amount of 6.3mm Viton sheet from which I punched out a 4mm NRV pip. I have now restored the NRV with its original pip carrier and it’s working well! The pump rod is protruding because of the pressure necessary to overcome the spring resistance not because of leaking…