Recent content by GM Platter

It's a new water heater, and I've got copper water lines. It may not be the fittings, but does that flex hose have black rubber lining?

Any reports on the sharkbite fittings being the cause for black spots in hot water? I installed a new hot water heater a couple months back, and am thinking the black spots are deteriorating rubber. I wasnt experiencing these before with the old heater. I'm thinking the new supply lines might...