One thing to keep in mind is that since PEX is just plastic, it would easily be penetrated by nails or screws driven through the drywall in the future, so you want to make sure to run the new lines at least 2″ away from any interior wall space that people might drive nails or screws into.

Can you run water lines through walls?

It is recommended to avoid having water related plumbing located in exterior walls or through unheated attics. It is best to have plumbing fixtures in interior walls. If plumbing is in exterior walls, the pipes should be well insulated.

Does concrete hurt PEX pipe?





Use steel PEX bend supports anywhere where tubing makes a 90-degree turn. Never use PEX fittings of any kind (brass or poly) in a concrete slab unless it is necessary for a leak repair.

How do you run PEX on a concrete wall?

When running any tubing (PEX, ABS, PVC) through concrete you need to de-couple it, Even 6mil plastic suffices, but sill guard is better. A tubing sleeve (e.g. 1.5in ABS) like you propose through the wall, is good too.

Where should you not use PEX?

PEX can’t be installed in high heat areas.



You can’t install PEX in high heat areas like near recessed lighting. This also means you can’t connect PEX directly to a hot water heater, but you can use a connecting material to do this.

Can I run PEX through a wall?

One thing to keep in mind is that since PEX is just plastic, it would easily be penetrated by nails or screws driven through the drywall in the future, so you want to make sure to run the new lines at least 2″ away from any interior wall space that people might drive nails or screws into.

Can you run PEX in exterior walls?





As a general rule of thumb, if your PEX piping is traveling through interior walls or insulated exterior walls, you don’t need to insulate it. However, piping exposed outside or inside unconditioned spaces like a basement, crawl space, or attic should be insulated, mainly if you live in cold-weather areas.

Does PEX need to be sleeved under concrete?

If you are wondering if PEX needs to be sleeved, the answer is no. The only time it might need to be sleeved is if there is a leak from an expansion joint or penetration. It’s not necessary for regular pipes and has been shown to create uneven temperatures. PEX doesn’t need to be sleeved or covered.

How long does PEX last in concrete?

Generally, PEX pipes last for 25 to 40 years before they need to be replaced.

Will PEX pipe freeze and burst?

PEX pipes, just like any pipe, can freeze when the temperature drops too low. Because the pipes are designed to be flexible, PEX has the ability to expand. Although it is still possible for them to burst, this means PEX pipes are less likely to rupture after freezing.

What is the lifespan of PEX plumbing?



30 to 50 years

While you can expect PEX to last for 30 to 50 years, copper piping will outdo it by about two decades, with a typical lifespan of 50 to 70 years. Copper is a more durable option that isn’t susceptible to rodents or sunlight. These pipes can easily handle water pressure of up to 1,000 psi.

Do mice eat PEX pipe?

PEX Pipe Is Vulnerable



Rodents Chewing Through PEX Pipe is a common problem in our area. It doesn’t matter how old your home is, if you have an attic, you need to watch for rodent damage to PEX Pipe or PVC. If you’re hearing rustling noises coming from the attic, it’s time to do an inspection.

Can I use blue PEX for hot water?



Color-Coded: Red PEX pipes can be used for hot water supply lines, blue PEX for cold water supply, and white for either hot or cold.

Can hot and cold PEX lines touch?

Hot and Cold Water Lines Should Never Touch



The picture above is of PEX hot and cold water lines that have been run through the framing and are touching each other the entire way. This has passed the rough plumbing inspection and is ready for insulation and drywall.

What is orange PEX pipe used for?

Designed for use on hot and cold potable water lines, Orange PEX tubing is commonly used for radiant floor and hydronic heating applications.

Which is better PEX crimp or clamp?

Quote from the video:
Quote from Youtube video: Although there are a few pros. And cons to keep in mind for each stainless steel clamp rings resist corrosion more effectively than crimp rings.

What is the best PEX connection method?



The most common connection method used in PEX installation is the “Crimp” method. This process involves sliding a ribbed fitting into the PEX tube and crimping a seal ring around the connection point. These rings are typically made of copper, but may be found in plastic as well as brass.

Should I use brass or plastic PEX fittings?

Brass its typically the best choice when the application demands a stronger fitting. In addition, plastic PEX fittings have a thicker wall requirement under ASTM2159 Standard, resulting in a reduced ID which restricts flow, while brass PEX fittings are manufactured to ASTM F1807 allowing for a larger flow passage.