Butane for developer preservation

[Peter De Smidt]

I've used Dust-off or similar for years. In my experience, it works well.

[Ulophot]

Thanks to all.

[Drew Wiley]

A new vaping kind of addiction, Peter?

[DougD]

You could probably use mineral oil as a float, but it would invite problems.

I like the idea of using marbles to fill up the void space. Very clean.

[Gary Beasley]

If you wanted to put up the money for a tank and regulator you could use nitrogen or argon from a welding supplier. A tank of nitrogen is pretty cheap to get refilled.

[Ulophot]

Oh, my goodness. Thanks for the suggestions and guidance. I'm not in any position to add a welder's tank of nitrogen to my cozy space. I remember with a smile the expression of my wife's grandmother, that "this apartment is so small you have to go out into the hall to change your clothes." I'll stick with lung-power and perhaps think about glass beads at some point.

[xkaes]

Since we're into explosives, let's not leave acetylene out of the possibilities. Just a tiny bit of that would increase the size of your apartment tremendously!

[Duolab123]

Sparge the developer with Helium to displace any dissolved gases then leave He in the head space.

[Bob Salomon]

Sparge the developer with Helium to displace any dissolved gases then leave He in the head space.

Nonsense! Just buy some glass marbles.

[Peter De Smidt]

Using marbles is messy.