Are there any alternatives to RO systems with pumps?

Hi,

In our new flat in Gurgaon, the builders have left provision under the sink for a filtration system. Apparently the requirement is for a filtration system with a pump integrated in it, because the system is directly connected to the water dispenser in the fridge.

I've been told that the only system that comes with a pump is an RO system, is that true?

Do we really have no alternative but to waste water using the RO system? If there any alternatives to this, please share them.

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