How Far Can You Run 1/2 PEX?

PEX, or cross-linked polyethylene, is a type of plastic tubing that is often used for plumbing. It is durable, flexible, and resistant to corrosion and chemicals. PEX is available in a variety of sizes, including 1/2 inch. But how far can you run 1/2 PEX?

Factors to Consider

• Water pressure: The higher the water pressure, the shorter the distance you can run 1/2 PEX.
• Number of fixtures: The more fixtures you have connected to the line, the shorter the distance you can run 1/2 PEX.
• Length of run: The longer the run, the more pressure drop you will experience.

General Guidelines

As a general rule of thumb, you can run 1/2 PEX up to the following distances:

• For cold water lines with low water pressure and few fixtures, you can run 1/2 PEX up to 100 feet.
• For cold water lines with high water pressure or multiple fixtures, you should limit the run to 50 feet or less.
• For hot water lines, you should limit the run to 25 feet or less.

Tips for Extending the Distance

If you need to run 1/2 PEX further than the recommended distances, there are a few things you can do to reduce pressure drop and extend the life of the line:

• Use a larger size PEX. 3/4 inch PEX can handle longer runs and higher water pressures than 1/2 inch PEX.
• Install a booster pump to increase the water pressure.
• Reduce the number of fixtures connected to the line.
• Insulate the line to prevent heat loss.

Conclusion

The distance you can run 1/2 PEX depends on a number of factors. By considering the factors discussed in this article, you can make sure that your PEX lines are installed correctly and will provide you with years of trouble-free service.