Black Tank Valve

Is your RV's underbelly closed or exposed?

It's closed. The dealership dropped the underbelly (so they've told me ... haven't picked it up yet), and didn't cut the underbelly.

since this is sort of a related question I'll throw it in here....

How long are the cables usually to the valve? I assume they're probably a little different model to model but generally what are we talking? 2-3 feet or 5-6 feet? Reason I ask is I want to lube mine and I'm wondering if I can drop some oil in the sleeve and blow it back far enough with compressed air to coat the whole cable?

I would say more to the 5 - 6 ft. range, not 2 - 3 ft. from what I can guess. I haven't seen the underbelly and don't know for sure.

Can someone explain this 'cable' to me? In my mind, a cable is thin and flexible. So how is it stiff/firm enough to close the flapper on the valve?

marielw824 wrote:
I would say more to the 5 - 6 ft. range, not 2 - 3 ft. from what I can guess. I haven't seen the underbelly and don't know for sure.

Can someone explain this 'cable' to me? In my mind, a cable is thin and flexible. So how is it stiff/firm enough to close the flapper on the valve?

Think like a brake cable on a bike