Inspect Internal Condition of Old Hose

What happens here

To confirm the internal damage, the creator uses a Milwaukee M18 reciprocating saw with a metal-cutting blade to cut open sections of the old fuel hose. He initially struggles with the cut due to internal wire reinforcement in the hose, even trying tin snips before returning to the Sawzall. Once cut open, he visually inspects the inside, clearly showing that the rubber lining has deteriorated and broken down, confirming his suspicion about the source of fuel contamination.

Goal: Visually confirm the cause of the fuel contamination by dissecting the old hose.