plastic dip coating

[scd6969]

what is this?

[thewonn]

@scd6969

its a hydrogen generator test tube.

[thewonn]

I tried both tap and distilled...

The distilled lasts a bit longer, but still turns redish brown..

I might try spring water next.

thanks

[oystla]

Are you using tap water? If, try distilled water og purified battery water