Brass PEX joint defect?

[ddagostino (Dominic DAgostino, CMI HI3957)]

@pkurtz

brass fittings stamped with “F877 ”

That’s the ASTM Standard for PEX pipe.

@pkurtz

There were two water leaks that I found from the joints.

That’s a problem you need to document, and if 2 visible fittings have corrosion or leakage, there may well be inaccessible fittings (couplings, elbows, crimp rings, etc.) that have issues.

Read up on brass dezincification for example:

Zurn Pex Failures

Twice in 2 weeks time I have found homes re-plumbed with Zurn brand pex pipe. Both show signs of oxidation at brass connections. Hot water side first of course. Interestingly I have noticed the water here in FL seems to deteriorate any type of brass valve or connection quicker, and many brass valves at water heater connections show signs of corrosion. Not so much of an issue in TN. Never came across this problem until I moved down here. Wonder how long until a fitting lets loose. [P1190750.…