Drain cap replacement

[Skelshy]

Two of our drain caps are leaking. What I mean by drain cap is the vertical drain lines under the fresh water tank and (in my trailer) hot and cold on the bathroom side. One lost the o-ring and the other decided to drip anyways.

I can't seem to find that part online, what am I looking for?

Thanks.

[Ralph_Cramden]

MANABLOC CAP 3/8"


MANABLOC CAP 1/2"

You most likely need the 3/8"

[craig7h]

Not really sure what lines you are talking about but I will give it a try. If its your low point drains, then I would take a cap to either lowes or home depot and replace them with valves. The plumbing items used in a camper is pretty standard stuff so you should not have a problem.

[sgip2000]

Replace the caps with shut off valves.

[ScottG]

Welcome to the forum!
It's really impossible to say without having some idea what year and type of RV you have.
Most of the newer stuff built in the last 20 years is PEX and will just have a simple, one piece cap (no O ring). Pex tubing is Red, blue or white-ish.
Before that there was a product call "Qest". It was all light grey and would have a similar grey cap without any O-ring.
Before that it was usually copper with standard brass fittings.

What type of tubing do you have?