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this is going to be your complete guide to installing pex plumbing in your house

💨 tl;dr

This video shows how to install PEX plumbing throughout a whole house using PEX type B with crimp rings. Key tools include a crimping tool, pipe cutter, and brass fittings. Color code hot (red) and cold (blue) lines for easy identification. Pressure testing is crucial to check for leaks, and proper installation techniques are emphasized.

💡 Key Ideas

• The video covers installing PEX plumbing throughout a whole house using PEX type B with crimp rings.
• Essential tools include a crimping tool, pipe cutter, go/no-go tool, copper rings, fittings (brass preferred), and clamps.
• Use red PEX for hot water and blue for cold for easy identification.
• Key fittings: tees, elbows, couplings, shutoff valves; prefer brass unless specific fittings require plastic.
• Pressure testing is crucial; a gauge with a shark bite adapter checks for leaks after installation.
• Drill specific bit sizes for running pipes through floors and studs.
• Anti-freeze spigots should tilt down to avoid freezing.
• PEX is less prone to freezing and can flex without needing elbows.
• Proper crimping technique is essential; use a crimping tool and gauge for verification.
• Stubbing pipes for fixtures requires accurate measurements (e.g., 6 inches for toilets).
• Install hot and cold lines systematically; hot on the left, cold on the right.
• Use blocking to secure the hot water tank and ensure pipes are supported and spaced correctly (8 inches apart).
• Nail plates protect pipes going through studs; use caps and plugs during pressure testing.
• Follow trunk and branch layout for plumbing lines; reduce pipe sizes as needed (e.g., ¾" to ½" for sinks).

🎓 Lessons Learnt

• Use PEX Type B for Easier Installation: Type B PEX simplifies the installation process, making it more manageable for DIY projects.

• Color Code Hot and Cold Water Lines: Helps to easily identify which line is which, reducing the risk of mistakes during installation.

• Invest in Quality Tools: Good tools make installation smoother and can save you time and headaches down the line.

• Choose Brass Fittings Over Plastic: Brass is more durable and reliable for connections compared to plastic options.

• Have a Pressure Testing Plan: Plan for pressure testing to ensure all connections are leak-free before finishing the installation.

• Install Anti-Freeze Spigots at a Downward Angle: This prevents water from pooling and freezing inside the spigot.

• Use a Go/No-Go Gauge for Crimping: Ensures that crimp connections on PEX are secure and properly done.

• Always Install Shut-Off Valves on Main Lines: This allows for easy access to shut off water in case of leaks or repairs.

• Secure PEX Pipes Properly: Use half clamps and drywall screws to keep pipes stable and reduce movement.

• Measure Heights Correctly for Fixtures: Accurate height measurements ensure proper installation of sinks and other fixtures.

• Use Nail Plates for Protection: Protect pipes that run through studs to prevent damage during construction.

• Batch Check Connections for Efficiency: Use a go/no-go tool to check multiple connections at once, saving time and ensuring accuracy.

🌚 Conclusion

Using PEX Type B simplifies installation, and investing in quality tools and brass fittings ensures durability. Always pressure test connections, secure pipes properly, and measure accurately for fixtures. Following these tips will lead to a successful plumbing project.

In-Depth

All Key Ideas

PEX Plumbing Installation Guide

• The video is about installing PEX plumbing for a whole house, specifically using PEX type B which uses crimp rings instead of an expanding tool.
• Tools and accessories needed for the installation include a crimping tool, pipe cutter, go/no-go tool, copper rings, brass or plastic fittings, and clamps.
• PEX can be purchased in red or blue, with the suggestion to use red for hot water and blue for cold for easy identification.
• Various fittings required for the project include tees, elbows, couplings, and shutoff valves, with a preference for brass over plastic except for certain fittings.
• A pressure testing gauge with a shark bite adapter is necessary to confirm there are no leaks after installation.
• Drilling tools with specific bit sizes are needed for running pipes through floors and studs.

PEX Plumbing Guidelines

• Anti-freeze spigots must be installed with a downward tilt to prevent freezing and bursting.
• PEX pipe has less tendency to freeze and burst compared to CPVC or copper.
• PEX can flex up and down without needing elbows for joints.
• Proper crimping technique is essential for securing PEX connections, using a crimping tool and gauge for verification.
• When stubbing down pipes for fixtures, specific measurements are needed for hot and cold water lines.

Installation Instructions

• through you put the red on the left and the cold on the right so that way there's no confusion.
• as far as how far apart your hot and cold are like i said four is eight inches and for your toilet it's six inches to the left of the toilet flange and six inches high off the floor.
• we need to install this ice maker kit so to do that we need to mark the height of it.
• the reason why we have such a long piece of pex because it has to go through the floor and below the floor joists to connect to the main trunk of the pex pipe.
• the best method for these hundred foot rolls is to unravel it and straighten it out before you go into crawl space.
• first thing you want to do is elbow straight up so that way you can start supporting your water line to the bottom of the floor joists and then install a water shut off valve in line.
• always check your connections using the go and no-go tool.
• this is the beauty of pex you can pull it down and flex it to where you need it to install the fittings.
• some people call this method trunk and run or they call it trunk and branch this means the same thing.
• always use blocking that way you can secure your hot water tank.

Plumbing Installation Steps

• Elbowing straight out from the wall to run the main water supply to the hot water tank.
• Using half clamps to secure pipes into place, spaced eight inches apart.
• Need to connect hot and cold water lines for pressure test purposes, running plumbing through the wall due to a concrete slab.
• Installing nail plates wherever pipe goes through a stud to prevent damage during drywall installation and other activities.
• Using a go and no go tool to batch check multiple connections at once.
• Reducing pipe size from three-quarter to half inch for sink supply lines, with a specific measurement of three inches from the wall.
• Stubbing out half inch pipes for the sinks and shower, needing plugs for pressure testing.
• Capping lines off for pressure testing and cutting them to the required height after the test.

All Lessons Learnt

Plumbing Installation Tips

• Use PEX Type B for Easier Installation
• Color Coding for Hot and Cold Water
• Invest in Quality Tools
• Choose Brass Over Plastic for Durability
• Have a Pressure Testing Plan
• Get the Right Drill Bits
• Keep a Crimp Ring Removal Tool Handy

Installation Tips for Anti-Freeze Spigots

• Install anti-freeze spigots at a downward angle.
• Drill holes slightly upwards when installing spigots.
• Use PEX for less freezing risk compared to CPVC or copper.
• Make sure to cut PEX pipes squarely.
• Position the crimp ring correctly.
• Check crimping with go/no-go gauge.
• Stub down pipes before running the main trunk.
• Follow spacing guidelines for sink pipes.

PEX Installation Guidelines

• Always put the red on the left and the cold on the right.
• The hot and cold pipes should be four inches apart, and for toilets, six inches to the left of the flange and six inches high off the floor.
• When installing an ice maker kit, mark the height first, about six inches off the floor, before drilling.
• Use a crimp ring and crimping tool to secure PEX pipe connections.
• Secure the PEX pipe using drywall screws in the snailing flange after running it through the floor.
• Unravel and straighten out long rolls of PEX before use.
• Always install a water shut-off valve in line with the main water line.
• Check connections with a go and no-go tool.
• Use half clamps to secure PEX pipes along floor joists.
• Mark the PEX pipe for length and where to T up.
• Use blocking when installing fixtures like a hot water tank for secure support.

Plumbing Installation Tips

• Secure your pipe properly: Always lift your pipe to the correct height and cut it flush before securing it into place to ensure stability.
• Keep hot water lines organized: Run your main water supply right to your hot water tank to streamline the hot water line setup.
• Use nail plates for protection: Place nail plates wherever pipes go through studs to prevent accidental damage when hanging drywall or pictures.
• Batch check connections: Use the go and no go tool to check several connections at once, making the process more efficient and error-proof.
• Measure for correct height: When installing supply lines, measure from the rough floor to ensure everything is at the right height for fixtures.
• Plug pipes for pressure testing: Use half-inch plugs to seal off pipe ends during pressure tests to ensure accurate results.
• Adjust heights after pressure testing: After pressure testing, cut the stubs to the exact height needed for sinks, typically around 21 inches.