Originally Posted by Jolly Roger bus 223
Thanks for the info. I didn't know the temp. And pressure rating of the material itself.
I have a few tools to repair some of it but have never ran it.
I have always worked as a commercial installer for the GOVT. so my minimum for domestic water is copper.
For the OP. I don't know your brand of heater but I have worked on many other brands and they are not that complicated.
If you can't get a warranty fix then get us the info. And we can help.
One advantage of Pex over copper is the fact it can be radiused, so fewer sweat connections to possibly leak.
Here's some pressure/temp info;
Pressure ratings, testing and pressure drop
PEX Tubing Pressure Ratings Pressure testing - Hydronic & Radiant Heating Pressure testing - Hot & Cold Water Plumbing
200°F at 80 psi
180°F at 100 psi
74°F at 160 psi 3 times the maximum working pressure or a minimum of 40 psi, but no greater than 100 psi.
Duration: 30 minutes minimum, 2 hours recommended 1.5 times the maximum working pressure but no greater than pipe’s pressure rating at given temperature.
Duration: 30 minutes minimum, 2 hours recommended