½” to 1” – Existing Uponor PEX-a Purple Pipe has been previously approved and installed in San Francisco without any code restrictions or additional marking requirements, it will continue to be accepted as such.
Is PEX plumbing legal in California?
PEX was banned in California due to some concerns about toxic materials leaking through the pipe and into water. Through various national laboratory tests, PEX has proven to be completely safe and durable. It is now legal in California and even included in principal plumbing codes.
Can I use PEX for main water line?
In slab and underground
Some plumbing contractors may be surprised to know that PEX is approved for use in underground as well as in-slab applications.
When was PEX allowed in California?
The Commission’s action allows the statewide use of PEX in hospitals, clinics, schools, residences and commercial structures. The effective date of the action is August 18, 2010, for the 2007 California Plumbing Code and January 1, 2011, for the 2010 CPC.
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.
Should I replace copper with PEX?
Coupled with low production and shipping costs, the savings resulting from installing PEX instead of copper pipes can be significant. Better Energy Efficiency – PEX has a lower thermal conductivity rate than copper. As a result, PEX pipes can help keep hot water hotter for longer periods of time.
What is wrong with PEX plumbing?
PEX piping has a maximum bend radius, which can lead to stress on the pipe caused by improper installation. In addition, extreme bends and kinks place a very high local stress on the wall of the pipe, making it more susceptible to oxidative degradation.
How long will PEX last?
50 years
PEX: Due to its flexibility and durability, PEX piping should last at least 50 years. PVC / CPVC: Under typical conditions, these pipes should last up to 100 years.
