Can Pex Piping Be Used For Main Water Service Line Replacement
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What is PEX Piping?
PEX piping (autograph for cross-linked polyethylene) costs less than half the price of copper and installs much faster. And since it's flexible, PEX makes remodeling jobs easier. PEX has a stiff "memory;" it ever wants to spring back to its original shape. And so working with a coil of PEX is like wrestling with a giant Slinky. For about jobs, you're better off buying 10-ft. "sticks" instead. You may have to pay a few cents more per foot and install a coupler or 2, but you'll avoid frustration and kinks. Even plumbers who run miles of PEX every year often buy sticks than coils.
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Which is Better – PEX or Copper?
PEX has several advantages over copper pipes:
- PEX is cheaper than copper. Half-inch PEX tubing costs about 1-tertiary the cost of copper. Some of the savings volition go towards purchasing a special tool to install the fittings. But if you're doing a medium-to-large plumbing job, you'll usually save on PEX over copper.
- PEX fittings are faster to install than copper. If you utilize a manifold and 'home-run' organisation, it's like running a garden hose to each fixture — super fast and easy. But even if you lot install PEX fittings in a conventional main line and co-operative organisation, the connections are quicker to make than soldering copper.
- A PEX supply won't corrode similar copper. If you live in an area with acidic water, copper tin can corrode over time. A PEX supply is unaffected by acidic water and is therefore a improve choice in these areas.
Lookout man this video to learn more nearly the PEX revolution:
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What About PEX vs. CPVC?
A PEX supply and CPVC cost about the same. Only there are a few reasons why PEX may be a improve choice. First, a PEX doesn't require gum, which means y'all don't have to work in well-ventilated spaces or wear a respirator. PEX is less likely than CPVC to burst if information technology freezes. As well, since PEX is more flexible and available in long lengths, it can work better for 'angling' through walls in remodeling situations.
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Do I Need Special Tools?
Aye. When plumbing with PEX, you can use stab-in or pinch fittings to make the connections, only they're too expensive to be practical on large projects. Connections for most PEX supply jobs crave a special tool. There are several PEX supply connexion methods, but simply two affordable enough to be practical for DIYers: crimp rings and cinch clamps.
Crimp rings are a ring of metal, normally copper, that y'all slip over the fitting and shrink with a crimp band tool. The primary drawback is that you'll need either separate crimping tools for i-one-half inch and iii-quarter inch fittings, or a universal tool with a swappable insert (not shown).
Cinch clamps work more similar the traditional band clamps you're probably familiar with. Yous slip the sure-fire clamp tool over the protruding tab and clasp to tighten the cinch clench. The same tool works for all sizes of cinch clamps.We like the 1-handed version shown in the photo because you lot can agree the ring in place with ane hand while tightening it with the other.
The only other special tool yous need is a scissors-like cutter for the tubing.
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How Practise I Splice PEX Fittings Into My Existing Piping?
There are several methods. The easiest is to cut out a section of plumbing pipage and slip in a stab-in tee (left). SharkBite is i common brand of stab-in fitting. This method doesn't crave soldering, which can exist a big time-saver. Merely check with your plumbing inspector if yous're planning to bury this connexion in a wall or ceiling. Some areas don't permit stab-in fittings to be concealed. Another method is to solder in a tee and a PEX supply adapter. And so skid the PEX supply tubing over the adapter and attach it with your called connectedness method (right). Yous can too employ a stab-in tee to connect PEX fittings supply to CPVC. Read the label to find the uniform fitting.
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Do I Have to Use Manifolds with PEX?
No. Yous can install PEX fittings supply just like you would other pipe, with main lines and branches to each fixture. But you lose a lot of the benefits of PEX with this system since it requires so many fittings. With the home-run system, you lot install a manifold in the utility room or some area that'due south close to the main water line and water heater, and run a separate PEX tube to each fixture as shown above. This system uses more than tubing, only is fast and simply requires two connections: ane at the manifold and another at the fixture end. You tin can also utilize a hybrid organisation where you lot run three-quarter inch hot and common cold lines to a gear up of fixtures — for example, a bathroom — and install a smaller manifold behind an access panel. Then brand short runs of one-half inch PEX water line tubing to each fixture.
Manifolds look intimidating. Just they really simplify plumbing runs and reduce possible leaks past eliminating the need for tees and other fittings between the main supply line and the fixture.
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Does it Meet Lawmaking?
In that location is no unified national plumbing lawmaking. Before starting your PEX plumbing job, bank check with your local inspector for specific local requirements.
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Do I Have to Utilize Ruddy for Hot and Blue for Cold?
PEX comes in red and blue colors to help you keep track of the hot and cold lines. Yous can use white PEX for everything if you lot prefer.
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Is PEX Reliable?
PEX has been used for decades in other countries, where there are thousands of homes with 30-year-old, leak-gratis PEX. Most of the bug with PEX systems, in the United States and elsewhere, were due to sloppy installation or faulty fittings rather than the tubing itself.
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Can I Connect PEX to My Water Heater?
PEX can't be directly connected to a water heater. Start extend a pipe 18 in. from your h2o heater and connect the PEX to the pipe.
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Which Tubing Should I Use for Interior Water Lines?
For h2o lines there are three PEX supply grades: PEX-A, PEX-B and PEX-C. They're manufactured differently, PEX-A being slightly more than flexible. If you're ordering online, become ahead and spend a few cents extra for PEX-A. But don't become running effectually town looking for it; the difference isn't that big. The plumbers we spoke to said they were willing to use any of the types in their homes. PEX is also popular for in-flooring radiant heating systems, though you need PEX tubing with an oxygen bulwark.
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How Do I Connect PEX to my Plumbing fixtures?
There are several methods. If the connexion will be visible, similar nether a wall-hung sink, and y'all would prefer the wait of a copper tube coming out of the wall, use a copper stub-out (left). You can connect a compression-type shutoff valve to the half inch copper stub-out so connect your fixture. In areas that are concealed, similar under a kitchen sink or vanity cabinet, y'all can eliminate a articulation by running PEX supply straight to the shutoff valve. Use a drop-ear bend support to concur the tubing in a tight bend (right). In that location are several types of shutoff valves that connect directly to PEX.
If y'all're using a manifold system with valves, you lot may not demand to install a shutoff valve at the fixture. Ask your plumbing inspector. We recommend calculation one, though. It doesn't increase the toll much and is more convenient than running downstairs to shut off the h2o when a repair is needed.
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What About Expansion?
PEX supply expands and contracts more than copper, so don't stretch it tight. Let it droop a little betwixt fasteners. On long runs, it'due south a good thought to install a loop equally shown to let for contraction. Another reward of the loop is that if you mess upward and need a little extra tubing, you lot can steal it from the loop. Too, since PEX moves as it expands and contracts, make sure to drill oversize holes through studs or joists and so information technology can slide hands. And don't use metal straps to attach it. Use plastic straps instead.
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Will PEX Interruption or Separate if it Freezes?
Probably not. Manufacturers are reluctant to say and then, simply reports from the field suggest PEX tin withstand freezing. You should still protect the tubing from freezing. But since information technology tin aggrandize and contract, it's less likely to break than rigid piping.
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What if I Goof? Can I Take information technology Apart?
Sure. There's a special tool for cut off crimp rings, and y'all can utilize side cutters to remove cinch clamps. But a rotary tool (Dremel is one make) fitted with a cutoff bract works great for cutting either blazon of connector (see photo). After y'all remove the crimp band or cinch clamp and pull the PEX supply from the plumbing fixtures, cut off the finish of the tubing to get a fresh section for the new connexion. If yous impairment the fitting with the rotary tool, supercede the fitting rather than hazard a leak.
Originally Published: March 31, 2020
Source: https://www.familyhandyman.com/list/pex-piping-everything-you-need-to-know/
Posted by: gutierrezdialt1955.blogspot.com
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