After a new reverse osmosis (RO) system is installed, it’s recommended to empty the first full tank of water. About 2–3 hours after installation, open the RO faucet and run it at a trickle until the tank is empty. Within another 3 hours, you’ll have a fresh full tank to enjoy. If you notice any sediment in the water, flush the tank again. This harmless residue can occur while new filters are fully saturating.
