It's an apartment. Not a big complex though (in a residential neighborhood with just 6 or so units). It's also kinda outdated and sat vacant for a year or two before I moved in. I doubt it has a system set up, but I can't say for sure.Do you own your house or are you renting or what? Lol that’s nuts I’ve never heard of zero ppm from the tap. Unless you live in an apartment that has an industrial ro machine supplying the building.
My water basically comes straight out of the river and is treated. Gotta love Oregon