1989 Honey Bravo Bathroom plumbing leak

[FrannieW]

Hi guys we have a 1989 motorhome so honey Bravo it's new to us they had a leak in it before we pulled out all the old carpet and we're going to install floating vinyl plank but in looking under the bathroom sink there is still a leak we did not notice and there is one copper tubing looks to be coming from outside the RV it is not a supply line the water supply lines are both

 

[Martian]

That looks like a propane line.

 

[Gary RV_Wizard]

Copper tubing used in RVs would be a propane line. Fresh water lines are plastic pipe, probably polybutylene in that vintage of RV, and waste lines are ABS.

 

[Kirk]

Looks like quite a project. We would be interested to hear updates as you progress.

 

[Silverbirch]

Copper tubing used in RVs would be a propane line. Fresh water lines are plastic pipe, probably polybutylene in that vintage of RV, and waste lines are ABS.

Guess what? Plastic pipe for plumbing wasn't invented until the 60s. I have a 1965 Cree TT and the water lines are copper. You might enjoy this article on "Which Leaks First?" Which Leaks First? Copper vs. Plastic Water Plumbing Pipes

 

[8Muddypaws]

We had an early 90s Honey. They did some things their own way but using copper pipe for water was not one of them.

I'm with Gary on this. Gas line. But probably not one now because it looks broken.

What is the nearest gas appliance? Stove/oven? Refrigerator?

The exception would be if someone put a residential refrigerator in it and ran copper tubing for an ice maker of water dispenser.

Good luck with it.

 

[Rene T]

It’s been nearly 3 months since the OP asked for help and hasn’t been back since.

 

[Gary RV_Wizard]

Guess what? Plastic pipe for plumbing wasn't invented until the 60s. I have a 1965 Cree TT and the water lines are copper.

Yeap, but this is a 1989, not 60's vintage.

 

[Kirk]

Yeap, but this is a 1989, not 60's vintage.

We had a 1987 class A that had polybutylene plumbing, which was common in the RV industry from the late 7'0s into the early 90's.