2002 Tiffin Allegro plumbing

[modrob]

I’ve had to dig in and do some repairs that involve plumbing, and I’m trying to figure out what, how everything is routed. Manuals don’t show what I need, and I can usually figure things out, but some of it isn’t easy to see…
First, I have a white plastic tank in the bay just in front of the rear wheels, that is a water supply. And then I found another long, horizontal tank in the very rear, underneath the headboard. The access hole lets me see two blue lines with a cutoff valve in one. Both come from the tank side on passenger side, low and high. Then continue onto driver side, curves and then runs toward front. Also, on the driver side of tank there is a coiled plastic tube line (about size of a vacuum cleaner hose along with a small water-type hose running that way also.
I think that’s the only question I have at this point.
Thanks for any help.

 

[AbdRahim]

The white one looks like a drain hose. Do you have a sink in a slide?

 

[JBright11]

That was my first thought as well. Looks just like the one I have in the FWS for the kitchen sink.

 

[modrob]

No, no slides.

 

[modrob]

Well, one mystery solved—dummy me…evidently I didn’t look high enough…tonight I happened to see the fresh water door on driver side, high up. (Even higher since when I parked the rig I had to build tall ramps to back it up on to get level—this part of the driveway veers off to the right, behind the house, and all the land is on a hill, so driver side is about a foot higher)
So I’m thinking this rear tank is fresh water, and maybe the other tank is for water for toilet, and black tank sprayer? (Near the top of the tank above the discharge is about a 1/2” hose connected to a high pressure nozzle…I did happen to find info on it in my manual. Plus, I had forgotten about pulling the panel out that was located in the valves area. It has a shower set mounted on it plus some inlets for water. I’ll attach a picture. Connections are “Sewer Flusher” and “City Water Connection” and labels for “Black Tank” and “Gray Tank…I hadn’t noticed them before—too many other problems popped up that I needed to start on first…geez…2 years parked and not turned a wheel yet!

 

[modrob]

Here is the panel:

 

[modrob]

The other day I was using a small compressor to blow air into the loose lines to see where they went, and now I remember that one of them went to that bay tank, bubbling the little water in it, so that must be the source of the Sewer Flusher mounted in the tank…