How to repair plastic bottom side sheating

For water line being outside is odd, and for "hot water line" this would be very odd. Coroplast of the "covered underbelly" - I have it in my travel trailer - does nothing for protecting from cold. There are several big openings around the tees and other fittings in that coroplast. Only short sections of water pipes in my rig are outside, for drainage. I stand corrected - there exist not-so-smart designs in RV.

Making coroplast "look neat again"? Like somebody can see it :)... I would staple or rivet a piece of same coroplast over. Sticky tape will work, but they tend not to last long, especially in hot climate.

LarryJM wrote:

robsouth wrote:
Should be no water lines outside the camper. They would freeze in a minute if so.

Almot wrote:
"camper" = travel trailer?

Hot water line is usually a red PEX line inside, i.e. above the floor. It goes from water heater to bathroom and kitchen. It has no business being outside.

Both you gents should hold off on making such definitive statements which BTW ARE INCORRECT unless you know for a fact what you are saying is true. It is common for water lines that cross from one side of a trailer to the other to be UNDER THE FLOOR when you have an enclosed underbelly. This appears to be the case (the underbelly part) with the OP since he is referring a plastic type material (maybe coroplast).

For the OP there have been several recent threads discussing how to seal up this area if one has to open it up for repairs and I doubt you will find any sort of diagram of the line layout for your particular trailer readily available. Because of the underbelly mods I have done I don't have to worry about this issue, but IMO I would want something other than some sort of tape to repair any holes I might have made since I just think tape might not last long term down there. However, IIRC a lot have used things like Gorilla tape and I think there is even a special tape for things like coroplast to repair that. I have even see a recommendation for Eternabond, but that is definitely something I would not use.

Larry

I have herd gorilla tape. I would check with the local RV shop!

On our trailer, MOST of the lines are above floor. However when I got to the hot water tank bypass I noticed a hole in the floor looking right into the underbelly lining. Yup, water lines not protected from outside temps. The hole was for the drains/traps to make it to the holding tank.

Larry is being too modest. Look in his Album for how to do underbody work right.

robsouth wrote:
Should be no water lines outside the camper. They would freeze in a minute if so.

Almot wrote:
"camper" = travel trailer?

Hot water line is usually a red PEX line inside, i.e. above the floor. It goes from water heater to bathroom and kitchen. It has no business being outside.

Both you gents should hold off on making such definitive statements which BTW ARE INCORRECT unless you know for a fact what you are saying is true. It is common for water lines that cross from one side of a trailer to the other to be UNDER THE FLOOR when you have an enclosed underbelly. This appears to be the case (the underbelly part) with the OP since he is referring a plastic type material (maybe coroplast).

For the OP there have been several recent threads discussing how to seal up this area if one has to open it up for repairs and I doubt you will find any sort of diagram of the line layout for your particular trailer readily available. Because of the underbelly mods I have done I don't have to worry about this issue, but IMO I would want something other than some sort of tape to repair any holes I might have made since I just think tape might not last long term down there. However, IIRC a lot have used things like Gorilla tape and I think there is even a special tape for things like coroplast to repair that. I have even see a recommendation for Eternabond, but that is definitely something I would not use.

Larry

Which model are you referring to?

I've used Gorilla tape with good results.
I have been told that this flashing tape works well also:
Flashing tape

Should be no water lines outside the camper. They would freeze in a minute if so.

"camper" = travel trailer?

Hot water line is usually a red PEX line inside, i.e. above the floor. It goes from water heater to bathroom and kitchen. It has no business being outside.