What's this hole in my floor?

[MonaxLisa]

I have no idea what this is, so I hope this is the right place to put it.
I have NO idea what it is! It's in the rear drivers side closet, under the carpet. I think the copper pipe is condensating, because the floor is damp but it's not leaking. Anyhow, this thing looks like a outlet cover, with a copper (or brown plastic?) pipe going straight through to the outside. What the heck!?

[nomader]

Is it near the water hearer? It could be were an old gas line came in. Is it rubber?

If the floor is damp, a PO might have tried to "fix" the problem by draining it. lol
Who knows?

If it's condensation, wrap it with insulation and foil tape, or switch it to pex piping.

[MonaxLisa]

yeah it is near the water heater, and it's right where they replaced some copper tubing...so that could be it!! I wonder if wrapping it with bubble wrap would work for the condensation, I don't have anything else.

[overlander63]

Originally Posted by MonaxLisa

yeah it is near the water heater, and it's right where they replaced some copper tubing...so that could be it!! I wonder if wrapping it with bubble wrap would work for the condensation, I don't have anything else.

You can get this, it's what it's made for:

Shop Plumbing : Pipes & Fittings : Tubular Pipe Wrap at Lowes.com

[4RXLA]

My 77 has the same copper grommet hole on the driver side rear storage compartment just forward of the water heater (rear bath model). My guess is it is for bringing a telephone line into the trailer as my trailer is wired for telephone from the factory. It can also be used to fish coax cable into the trailer for cable TV. I wonder if it might also be there for water to drain out if there is a major water leak from the heater or the toilet?? Those are my guesses.