What is this on my apartment hydronic baseboard heater? ( sh.itjust.works )

McLoud , 5 months ago

Looks like a gate valve with some calcium carbonate scale.

mihnt , 5 months ago

and what looks to be some sort of dried landlord repair fluid.

Ghostalmedia , 5 months ago

and what looks to be some sort of dried landlord repair fluid.

Ahh yes. Landlord fluid.

quaddo , 5 months ago

and what looks to be some sort of dried landlord repair fluid.

Not that the landlord needs to be really broken before you’re able to see the benefits of using the repair fluid.

For slightly broken landlords, don’t waste perfectly good repair fluid on them.

kometes , 5 months ago

Copper carbonate – it is greenish. The white stuff in the front is paint, I think.

ikidd , 5 months ago

It’ll pick up some copper oxidation on brass fittings.