Marchmermaid
I am new to the forum so I’m not sure how this works. I saw someone mention this on another post before I joined but thought I would ask the question anyway. I recently purchased a 2018 FKS 199 retro travel trailer. On my previous RV the gray water/Blackwater were In close proximity to each other and I would first dump the black then the gray and they would go to the same hose thingy into the sewer. On this one the black water is on one side of the slide out and the gray water is on the other side near the kitchen and requires it’s own separate hose thingy. Since there’s only one dumb place what do I do? Do I have to have two hoses and then I dumped one and then take it out of the sewer and dump the other one?
Quote 0
mikes
? Use the hose to dump one tank, then move the hose to dump the other tank. Why do you say "requires it’s own separate hose thingy"? The same hose should fit both outlets.
Mike
Quote 0
Marchmermaid
The one that I have is only so long. It is not long enough to reach the galley gray water outlet. So I guess maybe I should get an extension that way it reaches both. I had read on here where somebody Y the two hoses together, But I’m pretty sure I could not do that. Anyway thank you
Quote 0
mikes
Just get an extension. There's no real point in trying to have both hooked up at the same time, you shouldn't leave the gate valves open even if you have full hookups. You let the tanks get 3/4 full, then dump them and close the valve until they get full again. If you leave the valves open, you'll end up with solids on the bottom of the tanks because they won't get flushed out.
Mike
Quote 0
Marchmermaid
 Thank you. That is what I do. I let the tanks filled before I dump. But I used to dump the black first and then the gray to that kind of wash everything down. Guess I just have to do it a different way now 🙂
Quote 0
Ralph L Staub

This was my solution...A30E9F7C-8BFE-47AF-8AA6-25038D7AA2E9.jpeg 
Quote 0
Marchmermaid
Oh ok. That would be another option. Thank you
Quote 0
Lisa Foster Moss
Ralph,
The husband and I were talking about making the same support that you made for the galley tank. He wondered if your pvc bowed from the weight of the water? Some random guy we met at the Ft. Monroe campground said he used a piece of gutter to direct the hose.
We DEFINITELY need to do something - whenever we dump it's a regular clown show, but nobody's laughing and everybody's fussing. 
Don & Lisa Moss
Quote 0
retro195man
That is commonly known as. .
The pyramid of shame. 
Quote 0
Ralph L Staub
Ralph,
The husband and I were talking about making the same support that you made for the galley tank. He wondered if your pvc bowed from the weight of the water? Some random guy we met at the Ft. Monroe campground said he used a piece of gutter to direct the hose.
We DEFINITELY need to do something - whenever we dump it's a regular clown show, but nobody's laughing and everybody's fussing. 


I didn't use PVC, those are standard flex tubing. From the galley tank, I used two 45 deg. Elbows to direct the flow toward the Stern. From the Grey/black tanks, a 10" extension  to a Wye adapter. The hose between the elbow and Wye is supported by two lengths of 1/2" conduit lashed to each other about 1" apart, and suspended by zip ties from the elbow to the Wye, making a level channel for the hose to lay in. Conduit fits easily in the bumper, everything else folds up neatly and stores in a plastic bin.
Quote 0
Ralph L Staub
Oh, and no, it doesn't flex as it is typically empty. When hooked up, I leave the galley tank open. We use the kitchen sink a lot, and there's no need for a rush of water down that part of the lines, as there's no black water up there to rinse out. Wind will blow the pipe off the supports from time to time though. I'll be adding a few velcro straps along the length of the conduit next trip.
Quote 0
Lisa Foster Moss
"Pyramid of Shame" - LOLOLOL  "Nothing to see here folks, just move along..." That is hilarious!
We are getting some conduit today and trying your system ALSO, we are going to try keeping the galley open as you do to see if it makes our situation easier. 
Thanks for the help and good belly laugh!
Don & Lisa Moss
Quote 0