I was thinking about getting a reverse osmosis water filter for my condo. I was told that RO systems use a lot of electricity. From my understanding, RO systems use water pressure to pull the water through the filter membrane.
Do RO filters systems use a lot of electricity to pump the water through the filter membrane? Or is it just the pressure from the tap?
Reverse osmosis systems don’t use any electricity if you’re on municipal water - it’s just the pressure from the tap.
If you have a well and pump, that’s a different story.
Reverse osmosis does waste a lot of water, perhaps that’s what you were reading. You might get as little as one gallon of pure water out of 10 gallons of tap water, the rest goes down the drain.
