black water tank valve

Hi. When we pull the black and grey handles, it appears the rubber valves seem to be hardening? and sticky. We have lubricated the rods but that isn't helping. Question: Is it normal to have the handles take such force to open? How do we get the rubber valves lubricated and/or does this seem...

Hi there; I just purchased a 2013 Redhawk Class C. I am trying to flush my Black Water tank but nothing is happening. I hooked up a garden hose to the flush system (not the fresh water) and opened my black water valve down below but when I turn the water on - the water is not flowing. Does...

On my half bath on my Pinnacle 36FBTS, the black water tank valve has become very hard to close. A couple of days ago, it stopped closing all the way. Now I am not certain if the problem is the valve or if things are plugged up. I have tried flushing with a wand from inside the rig and...

I just tried to drain my black water tank for the first time this past weekend. Can someone tell me how to properly use the flush out for the black water tank? A note near the water connection says not to use it without having the "#$@%" valve in the open position. I don't remember the...