The salt was in the water to begin with. If you read that reference that you posted, you'll see that the problem is the waste chemicals (not salt), and the increase in temperature of the water. It's plausible that they could filter out the waste chemicals, but I'm not sure about the heat.
Yeah, you're right that salt is in the water already and isn't technically waste. I just called it that because as a 'left over', it feels like it's waste.
However... it doesn't mean much that salt is in the water already. You're taking the water out, but leaving all the salt. That can't be good at all.
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The salt was in the water to begin with. If you read that reference that you posted, you'll see that the problem is the waste chemicals (not salt), and the increase in temperature of the water. It's plausible that they could filter out the waste chemicals, but I'm not sure about the heat.
Yeah, you're right that salt is in the water already and isn't technically waste. I just called it that because as a 'left over', it feels like it's waste.
However... it doesn't mean much that salt is in the water already. You're taking the water out, but leaving all the salt. That can't be good at all.