Bathtub is clogged. Kitchen sink backs into tub.

Harvard wrote:
Just to clarify, the kitchen sinks are always connected to the gray tank BUT some bathroom vanities (AKA basins) are connected to the black tank.

True, Some, but not all.

Oh. That makes more sense.

Just to clarify, the kitchen sinks are always connected to the gray tank BUT some bathroom vanities (AKA basins) are connected to the black tank.

I did click on that link. Thank you for providing that. I'll buy one of those this week. I can hardly wait to see what's down there. (Not!)

Interesting that the sinks are often plumbed to the black tank. Mine clearly is not, if it backed up into the tub when I drained it. It hasn't been more than 5 days since I dumped the tanks, but I am hooked up to the water in the campground now and the water comes out much faster and stronger. That's something I'll have to remedy, by using basins that I can dump out the RV door and onto the ground.

I don't have sewer at my site so it's a pain to drive up to their dump station. Other sites have sewer and are empty. Maybe I'll try backing into one of those sites and dump there for a change. Gravity will assist me much better at one of those sites, too. The hose has to go up a pretty significant hill at the dump station and I have to lift the hose to get it to empty, over and over again.

Oasisbob wrote:
So not to hijack this thread. Just curious if it is true that the bathroom sink is often plumbed into black tank to add volume? Or is this a myth?

Yes, our basin is plumbed to black tank for added liquid content.

Oasisbob wrote:
So not to hijack this thread. Just curious if it is true that the bathroom sink is often plumbed into black tank to add volume? Or is this a myth?

Yes it is true. The basin in my Endura was plumb to the black tank. While putting a cabinet door in the basin cabinet I plumbed basin to Grey tank.

Home Depot has the Zip It for $2.49.

So not to hijack this thread. Just curious if it is true that the bathroom sink is often plumbed into black tank to add volume? Or is this a myth?

I think you're gray tank may be full

That is one way to tell that you need to dump the gray water tank, when the water backs into the shower pan.

Idiot lights for gauges are not reliable and most do not work anyway, specially the cheap ones in C class RV's, mine quit about the 3rd month and I have not used them since 2002, grey water backing into tub, time to dump grey.

Black water showing in toilet tube time to dump black tank, in any case my wife can hear the noise change when the black needs dumping, she is one hell of a sensor.

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