A fluid supply warning and communication system including fluid tight engagements being made with tubing having at least one connector end chosen from a universal connector, a twist-on nipple, and a v-shaped end. A gas supply warning and communication system including a first upstream gas path, a second upstream gas path, and a downstream gas path made with tubing having at least one connector end chosen from a universal connector, a twist-on nipple, and a v-shaped end. A method of increasing humidity in a downstream gas path in the gas supply warning and communication system by flowing gas through a downstream gas path tubing that increases humidity to an end use appliance.
