(*Note: The tube stiffener not visible as it’s inside the fitting) The assembled tubing inserted into the fitting. Need to take it apart? Just reverse the order of assembly instructions. Then, tighten the nut by hand until secure. Now, push the tubing over the fitting flare, rocking it back and forth until it comes to a full stop against the fitting. Unscrew the nut from the fitting, and slide it back over the tubing. Simply, cut the tubing squarely and ensure there aren’t any burrs on the tube. We bought a 3/8-inch tee fitting in a small-town hardware store, but you can also find them on Amazon.
They range from simple couplers that allow you to fix a break to tees that are for jobs when adding a new run. When you need to change out your water lines, there are a variety of different fittings available. I usually go with a PVC pipe cutter, which makes a clean edge and can be used on PVC pipe as well. This is also a requirement for a leak-proof connection. You can use a utility knife, but a tubing cutter designed for PEX ensures a clean, even edge. While working on water lines, you just need a tool to cut the PEX tubing itself. Chlorinated water is not an issue in terms of tubing or health safety. Typically, the rating is on the tubing itself. At one hardware store, bulk 3/8-inch may set you back 50 cents/foot.Īdditionally, PEX is ideal for both cold and hot water (some up to 200 degrees) plumbing. These are the standard size because the outside diameter of the tubing is about 1/8-inch greater than the called-for size. In RVs, manufacturers typically use translucent non-colored PEX for all plumbing runs.įurther, two sizes are used, 3/8-inch and ½-inch.
PEX tubing in homes is color-coded for hot and cold.
What is PEX tubing for the plumbing in my RV? In RVs, manufacturers typically use translucent non-colored PEX for all runs.
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