Does anyone have a source for PEX-AL-PEX compression fitting replacement o-rings? I just shut down for the first time in a year yesterday to do some maintenance and found a bunch of drippy PEX-AL-PEX compression fittings this morning. I originally got my fittings from a dealer on e-bay when I did my install 3 years ago and am wondering if upon cooling down the o-ring "Squeeze" is lost. My fittings have 3 O-rings in them. The way I see it I have 3 options,
1.) Do nothing, start up again and assume the expansion from the heat will re-seal all my fittings
2.) Try to further tighten fittings while I am shutdown to see if that slows down leaks
3.) Try and replace O-rings in fittings (somewhat of a hassle, I have closed cell insulation around most of my fittings).
I Isolated the Boiler H2O w/ shutoffs and then drained the Pex-Al PEX lines so they don't continue to drip for the time being. My setup is in a remote outbuilding installed in 2010, and I have Pex-Al-Pex in a series loop in basement feeding indirect H2O heater (w/ electric backup) and a furnace.