>>1233751Does your tube have valves like in the video or like this in the picture? The presta valves in my picture might have the valve core leak, with the schrader valves in the video I've never really heard of the core getting loose since you need a separate tool to unscrew or tighten it anyways. But the valve core is a pretty unlikely spot, there's probably a small hole somewhere on the tub that leaks a little bit.
