Under floor plumbing?

[Glider]

Reviving an older thread. Something is not clear to me. Can someone tell me what the probable routing of the plumbing lines on my van would be?

2006 EB PH. Open aisle. Gaucho with water tank on driver's side; hot water tank and sink on passenger's side. The lines disappear into the wall on both sides. They are not routed outside the van. My guess is that they travel in the walls to the back of the van, then go up and over the rear door. Is that correct?

Thanks.

[Scalf77]

that is correct, you should also find drain valves at the various low points.

-greg

[86Scotty]

They could also be under, but I've seen them routed over too. I changed an 'over' to an under on a van not too long ago. It just seemed to make more sense to have them accessible right under the rear trim plate in case of a leak or repair.

[Ben10281]

My Ford SMB is the same way, pipes appear to be routed through the walls instead of outside the van.

Did SMB offer a "winterized" version and a "non-winterized" version of their water systems? Whereby they ran the piping inside the van vs outside to help with colder/freezing temps? I bought my van in CA, but it was originally built for an owner who lived and used the rig in CO where colder temps are pretty normal at elevation.

Is there much of a benefit to having the pipes in the walls to help prevent freezing? I do see some batting type insulation between the van wall and the SMB interior wall. If I am running my heater all night to keep things above freezing, would that help keep the pipes from freezing inside the van walls?

Thoughts?

[86Scotty]

I would say absolutely it will help. One good thing though is that newer SMBs have PEX throughout so even if they freeze they won't burst.....theoretically.


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[Pntyrmvr]

Originally Posted by 86Scotty

I would say absolutely it will help. One good thing though is that newer SMBs have PEX throughout so even if they freeze they won't burst.....theoretically.


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The PEX lines themselves won't burst, but the fittings, metal or plastic, will certainly crack if chilled enough.

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