Two streams of water
RO uses pressure to move water through a semi-permeable membrane. It produces a treated stream and a reject stream containing concentrated substances.
Performance depends on the system
Check documented contaminant-reduction claims for the specific model. RO also uses water for the reject stream, so efficiency belongs in the selection discussion.
A simplified view
The diagram shows the principle, rather than the piping of a particular product. Pre-treatment, storage and finishing stages vary by system.
Talk through your requirements
Share your water results, expected demand and available space with Deep Blue before choosing equipment.
Inside reverse osmosis
Source water
Pre-treatment
RO membrane
Treated waterReject stream
Further reading: EPA · Official guidance